Other Splitting payments between payment providers


Active member
Has anyone succeeded in splitting payments between multiple payment providers? (2 payment providers at a time are enough for us...)

We would like to use Dragonbytes credit system as a payment provider on our forum, but to allow users to combine payments with credits and real money.
I have 2 scenarios in mind:
Lets say the users have only some of the credits available- this way they can pay the remainder with real money.
2) we don't want users to use all their credits at once so they can use credits to pay for only a percentage of the total payment, the rest needs to be made with real money.

If this has been done in the past, I'd really like to discuss with others.
Any developers are welcome to contact me too.