On the Shopping Cart page. Please look in the Cart Totals area to verify your coupon discounts have been applied.

Yes, coupon codes can be removed and applied again as many times as is needed

On the Shopping Cart page you can find the 'Remove' text link in the Cart Totals area. It only needs to be click once and the totals will update automatically.

No, there is no need to re-enter the code. As you make any changes to the Shopping Cart the promotional discount automatically adjusts.

No, there is no need to use caps. The codes are not case sensitive. Lower case letters and numbers will work just fine.