I have been trying to get a receipt from NCO since September 2006 when I paid my grand-daughter's bill in full which was $139.00. NCO cashed my check in September 2006. I called NCO on many occassions and only talked to their very rude and not speaking English representatives only getting transferred or given another phone number to call. When I called NCO to get their Corporate office address because I'm in the process of writing a letter I could not believe non of their representatives knew the address. That tells me something and it is not good regarding NCO.