Customer Store Credit on account??

Is it possable to give a customer store credit directly to there account?

I know i can mail a cert to them, and they can add that total to there account, but is there a way for me to manualy add the total to there account to use later? or do i have to email them and let them add it?

see im tring to give them store credit for an order that he changed, but i want to add it directly to his account.

can i do this via coupons, or do i have to do this with gift certs?

any help would be great

It is not built in to Zen Cart to "credit" an account with a Gift Voucher ... at this time ...

It is built in to send the customer a Gift Certificate that can then be redeemed either via the URL in the email or claimed in the checkout_payment process then applied to their account ...