They call a XXXX times a day. On my cell phone. They never leave a message. The few times I have answered, there is nobody on the other end and the call disconnects. I 've found out through looking up XXXX XXXX ( from my caller id ), that they are some sort of debt collection agency. I 've also learned that they are rude and threatening. I have no way to stop these calls. I put the numbers in my reject call list but they always call from a different number. I ca n't get in touch with them, but they are calling and calling. I 've received no mailings from them and I just want the calls to stop.