credit missing from credit box

Jac

I'm trying to fix a payment that was done the wrong way back a few months. At the bottom of the customer payment screen it shows I have an available credit to use which is what I need to do to fix this problem, but when I click on credit box the credit isn't sitting there for me to tick. I've tried numerous things which have'nt worked. I've no idea where to go from here.

Jac

Kris_Williams

You can go back to the payment and reallocate if that is the problem but only if you are on accrual basis for your BAS. How much are we talking about?
If you do a new receive payment and tick the outstanding amount and then click credits does anything come up to apply?