enhance payment method

Hi,

We have only 1 charecter to define payment methods, we have used all of them. Now our client wants to have another bank account with same currency as previous ones, so its not possible to use the existing payment methods.

Is it possible to enhance payment method such tht it can accept 2 or morre charecters? or is there any way to solve this issue?

it's very urgent pls reply me....