Experian sent me a letter, in response to my certified letter of dispute, claiming that my letter was suspicious and being disregarded, and that they were contacting law enforcement. When I called and told them it was not suspicious, they asked for my credit report number or SS # as verification. I gave them the credit report number from the credit report I had received from them, which was also included in my letter, which they deemed suspicious. I said I have the post office certified receipt, and could send a copy of that as proof. The representative on the phone told me if I sent more letters, they would also be deemed suspicious, and not acted upon, and I would simply receive more letters like the one I received today, stating that my letter was suspicious.