Mango Wallet Inner Lining Peels After Minimal Use

I received a Mango brand wallet as a birthday gift. I took delivery of the wallet about two months ago, but I have only been using it for about one week and even then very minimally. Despite this, the inner lining of the wallet has started to peel and deteriorate on its own, as can be seen in the attached photo.

I cannot accept that a product I have barely used has reached this condition. Although Mango is a brand I have trusted and preferred for a long time, I do not understand how this product could deteriorate so quickly. Even if there is a manufacturing defect, I question how it passed quality control.

I request that the product be examined, that any manufacturing defect be identified, and that my wallet be replaced.