<prompt> Human: I just got a call from a debt collector. I asked that she only communicate by mail. She refused this and asked that I pay. I told her I need to have this debt validated. She said that X Hospital already sent a bill, so she doesnt need to send me validation, and can I post date a payment? I asked her again to validate the debt. Can you please commit a payment?How frustrating. I was unprepared. I asked her to call again next week. Ive read the FAQ, but what do I do when the collector refuses to follow the rules? Or am I misinterpreting the rules?Thanks in advance!  <response>: From a former debt collector... Send a cease and desist letter 