For the last week I have routinely received XXXX calls a day on my cell from XXXX XXXX XXXX. ( this a.m. they started at XXXX ) When I XXXX this number, I found others have been complaining for XXXX years. It belongs to Receivables Performance Management, a debt collection company, apparently. I do not take their calls and they do not leave messages. I do n't owe anyone anything, so how do I get them to STOP. They only have my cell phone, not my landline or my husband 's phone. I do n't answer any caller I.D . that is n't recognized by my contacts list. I 've had this phone on the DO NOT CALL LIST for over XXXX years!