I would like to add 2 new payment gateways: Allopass and RBca$h on my site http://www.retbranche.com
For allopass you can check their site here: http://www.allopass.com/
For RBcash, this a payment method we have developed in house to help people without a credit card and/or Paypal account to be able to buy stuff on our site.
RBcash is a prepaid card that the user buy with hard cash offline and credit his account on our site of the amount of the card, so later when he want to shop on our site he can use the cash available on his account to pay.
Right now only Paypal and 2Checkout are default payment methods on our site, we need to add allopass and RBcash then we can have 4 payment methods, instead of just 2, that other plugins (mp3 music, stores, subscription, buy credits, gifts, etc.) shall be compatible with and be able to use.
You will need as well to create on the site backend a function to upload a csv file containing all the codes that shall go on the site database so when people credit their profile account the code amount can be recognized by the site.