incorrect card number cannot change

[willows]

Dear Oscommercers,

 

I am integrating a remote payment system and testing using varios card numebrs supplied to me by the remote cc processor.

 

Problem is when I enter an expected bad card numebr i cannot correct it to be a good card nuumber. the form keeps reverting to the original bad card number. It looks like the card number stored in the session cannot be deleted or edited even though we are trying to do so. when the payment is attempted to go to the processor the validation ont he shop side fails and gives back the previous cc number. Therefore if a customer enters the incorrect card they cannot re enter a good one later.

 

any ideas?

 

happy holidays....

 

Willows