You didn't specify where you want the money output and what the Commission is for you "big".
One time I looked in the direction of Chronopay, but refused.
For myself, I have realized that if you provide quality services on the cards only through www.firstdata.com
about the Commission — I do not remember.
But you know what API they are all painted.
It ended up that I entered into a contract with:
— like the British.
— opened a business account.
and then signed the contract (Poland).
In General, the user chooses what suits him.
I have everything going through the account and the card companies, this is no problem.