I too was "harassed" by MCM, for a couple of weeks. The co. was handling two old debts I'd owed. The number shows as unknown when they call, and After two calls that I answered, I'd screen them and be harassed via voicemail. One day I accidentally answered, and was shocked to have a nice gentleman "Joe" really help me. He verified everything, and even understood when I needed to call HIM for my peace of mind, before dropping a CC on the phone. The company DID positively report my debt to the Credit Bureau, and I am quite satisfied, but ONLY with this individual.