payment

What's the best online payment processing solution?

Should be available to non-U.S. companies, easy to setup, reliable, cheap, customizable, etc. What are your experiences?...

donation services

A friend came to me about a donation service on his website. We want to go as cheap as possible, and when I suggested paypal he said he wants to go an "independent" route --I think this means he doesn't want a gateway service, but I don't think that is possible without collecting the data and going old school with paper (please correct m...

What to charge

I plan to start a small company with a friend and we are trying to work out how to price for people that want to outsource to us for PHP, Python, (My|Postgre)SQL, HTML/CSS JS and SEO. Assuming that there is no fixed going rate that we can find, how should we work out what to charge per hour? ...

Credit card expiration dates - Inclusive or exclusive?

Say you've got a credit card number with an expiration date of 05/08 - i.e. May 2008. Does that mean the card expires on the morning of the 1st of May 2008, or the night of the 31st of May 2008? ...

Is it better to be paid by the project or hourly?

I've recently gotten offers from several clients who are throwing consulting/contract work at me. (this is what we call a high quality problem). The problem is the most interesting ones will take an unknown amount of time and typically clients get upset when stuff doesn't get done FAST. This goes into the fact that consulting/contract ...

Limiting impact of credit card processing scripts/bots

I'm involved in building a donation form for non-profits. We recently got hit by a fast round of low dollar submissions. Many were invalid cards, but a few went through. Obviously someone wrote a script to check a bunch of card numbers for validity, possibly so they can sell them later. Any ideas on how to prevent or limit the impact of...

What is the simplest way to charge money over the Internet?

I have a .Net 2.0/3.5 WebApplication. I want to be able to take money over the internet for my service. Each of my customers will have an AccountNo. I wish to offer several products each of which will have fixed price. I need for my customer to login to my system and elect to pay me money for a product of their choice and for my app ...

Whats the best way to offer credit card payment on your website?

I want to offer credit card payment on my website and was wondering whats the best (or prefered) way to do so? I know I could use Google checkout, paypal, etc. but this is not what i am looking for. I am looking for a simple basic CC payment which supports all the different credit cards only. ...

Canadian website payment processor recommendations?

This question has been asked before (link) but I have slightly different requirements. First, I'm in Canada so that rules out Google Checkout and probably a few others. I just need a basic service that provides "Buy Now" functionality, no shopping carts or anything like that. The site isn't super high volume, so I'd like to avoid any sit...

Credit Card Payment Solutions for Desktop Applications

There are a whole raft of questions regarding payment processors for web applications but I haven't seen one yet for desktop applications. What are your experiences? Perhaps to put this into a little context, the requirements: Should be customisable Should be available in Australia at least, if not world wide (less critical). No stora...

What is the best pay model for programmers?

I am a programmer and am paid by the hour, as are many other programmers. I have worked on projects that were paid a fixed price. Both seem to be a bit unsuitable. Pay by the hour - is good if you have low ambitions and want to stay out of trouble Fixed price - is good if you are a fast above-average coder and want to take advantage of...

Integrating PayPal checkout

I have a shop system that integrates PayPal in the usual way, i.e. the user is redirected to paypal.com to log in and confirm the payment after which the user is directed back at a confirmation page in my shop system. Now my customer is asking if the entire process can be run inside the shop itself. I have two or three ideas about this...

Recurring Payments in PayPal

Hi All, I am trying to use the Recurring payment API offered by PayPal. I have a scenario which I am not able to address directly. It goes like this. We have a website where we sell some services. Now the services are charged per user license. A user can buy/cancel user license in between. We want to offer the customer a recurring bill...

Algorithm to determine the "usual" cash payment amounts for a given price

You walk into a store, select several products, then go to the counter to pay your bill. The total is some amount (A). You reach into your wallet, purse, or pocket and put down some cash (P), where P >= A, and the cashier gives you change. Given the set of coins and bills that are in circulation, what are the most likely values for P? ...

Accessing a HTTPS website using a Flex/AIR HTML component?

Is it possible to access remote pages through https when using the HTML component inside a Flex AIR application? I'm looking to build a credit card payment integration into an AIR application and the easy way would be to send the user to a payment service within a browser embedded into the application. ...

What is required to send messages via USSD?

I'm trying to get started with USSD. I'm familiar with other forms of SMS. Ultimately i want to use USSD as part of a real-time payment platform. Thanks. ...

How to Handle Cancelled Recurring Payments

I'm using Paypal to handle automated recurring payments for my website. Users pay to subscribe to my website so they can get periodic newsletters. So let's say a customer cancels their membership a few months later. They do this by logging into Paypal and cancels future automated payments. How should I update my website to reflect th...

Website Payment Pro outside US

My current online shop use PayPal express checkout (for credit card too) to charge users. Our surveys (and A/B testing) showed that they are willing to make am order in a fewer step and without going to Paypal website. We are based in Hong Kong so Website Payment Pro with DirectPayment can't be used. Do you any other solution that could...

Recurring billing with Rails and ActiveMerchant: Best practices, pitfalls, gotchas?

We are prepping for the release of a large web application that has been in development for the past year. We are about to start the process of integrating ActiveMerchant to handle recurring subscription fees for the service. I am looking for any advice regarding best practices considering our requirements (listed below) and any additio...

ActiveMerchant: How to authorise cards when using gateways that do not support the void operation?

I am working on the billing component of a Ruby on Rails application using ActiveMerchant. The payment gateway we have chosen is PaymentExpress. Code examples I am seeing such as the one below, use authorize() and void() to test the validity of a card: def test_card! auth_response = gateway.authorize(100, card) gateway.void(auth_re...