Yes, I have received the letter to which you refer in the last 8 days, but this time from the Tarn CPAM, as we have recently moved. I too had already received my calculations (Correctly this time), so only panicked everso slightly. I rang CPAM and was told it was a computer error, and to ignore it. The much more serious problem I was referring to, was for the last health year in the Aude. I have been through an official complaints procedure, and it was here that the documents disappeared from a registered envelope!