Coupon code losing credit card detail

I have version 1.3.8 and it appears that on my site when someone pays by credit card (basic offline processing) and enters in a discount code, the order is sent through and confirmed but no payment details. This does not seem to be a consistent problem. Has anyone else had the same issue?

Um, you've just posted in three places on what appears to be the same thing, but each topic is slightly different, and has now created disjointed discussion.

So, which is it?

http://www.zen-cart.com/forum/showthread.php?p=649993#post649993
http://www.zen-cart.com/forum/showthread.php?p=649991#post649991

Sorry but posted as people were asking if happened in my version of zencart. Payment comes up as discount:coupon when paid by credit card, no discount has been applied and no payment details show up.

Thank you in anticipation.

What are the details of the coupon?
What other payment modules are installed?

Well that problem seems to have stopped (wierd) and now have the problem that no credit card transactions are showing the expiry date on the invoice or split emails, so we are having to contact all customers who purchase using CC. This just suddenly stopped happening without having touched the payment module or applying any new discount codes etc.

Well, that's not how the original code is written. Perhaps someone is modifying your code on you?

I reloaded the module and is now working perfectly!