The problem: Once all card slots are occupied, the purse is not only extremely thick, but bulges at the edges and extremely unsightly. Given the fact that my current wallet had this problem even when fully loaded with 16 cards never (neither, when it was new, today), I have to assume that this one is just poorly designed. The problem is made more difficult by this belt, which is placed in front of the front 7 card slots and frankly has no useful function.
The belt with the previously seen - that the wallet turns at full loading and arches not. Have you wrapped up and returned directly back.