Flying Blue in the face

I recently flew with Air France to Paris and back on a business trip. To my surprise my miles for the flight could not be awarded as the name in my passport and the name on my Flying Blue loyalty account differed. No problems I was assured, just change your names when you bet back home.

I have now unsuccessfully been trying to do this for the past month. The loyalty program for Air France KLM does not answer their telephone. I have sent emails twice from the Flying Blue website, as you cannot email the program directly, but without a response. I am quite surprised by this. My experience onboard was very positive, why can the customer service not be good as well?