Belt clip breaks fast

Basically, the bag is good, the workmanship is ok, the closure (magnetic) works well, there is no "protruding" parts on the closure as in other bags.
For the HTC HD2, the bag is a little too big, but this has me very disturbed.

Unfortunately, the problem is the same in this case, as in most pockets. When attaching to belt with the clip, dissolves after a while the seam, and the metal comes through. Then you can schenll ruin the belt.
Too bad, otherwise the bag would be really recommended.