Milanese loop magnet rusting and breaking

The magnet in the STAINLESS STEEL band on my STAINLESS STEEL watch has been slowly eroding for the past year and now is constantly loosening. I might not mind if I hadn’t paid quite a bit more specifically to have STAINLESS STEEL. I swam with it on once and dried it after I got out of the pool and it’s NEVER been in salt water. It’s not right or fair that something is marketed as being made from a metal that’s durable and rust resistant can become unusable from sweating or washing one’s hands. I know I’ll be referred to the fine print somewhere but this is ridiculous.