I believe this is WAMU's collection agency trying to find info out on someone.  Why don't they have to follow the collection agency rules like everyone else by stating clearly who they are on the Caller ID system?  What happened to following the US laws on collecting?

Confirmed that it is indeed Washington Mutual collections

Nice to know that they are special and don't have to follow the rules especially when they have been given all of the information up front and were told to stop calling......plus they record the call and don't say that they are - they claim it is in your credit agreement - unethical!

Keeps comeing up on my phone

Yep - and they call on sunday!