I had a simular experience. First week of May, made to flights (TATL en domestic) with DL in D class. After a couple of days got 100 % miles added, while it should be 150 %.
Phoned with FB, they told me that I was right and would fix it within 2 days. Nothing happened. Phoned again, this time they told me: it is a known problem, we are working on it. If it is not corrected within two weeks please phone again. I did today. Naturally the third time an operator who had to discuss with her mentor. After minutes she came back and told: you need to sent us your e-ticket number, otherwise we can not add the miles. Me reply: the flight is in your system, you only added the wrong amount of points. It seems this was to difficult to understand, only got an usual remark about 'rules'. Then I asked for an e-mail adress to get in contact with them, because the mail option on the website is not working. Getting the reply: you can contact us only by using the mail option on the website. Well I just told, it is not working.....
Then I suggested maybe I could speak with the mentor myself. After minutes waiting getting the reply it was not possible, but the descision was made to sent the request for adding the missing miles to Paris. Well trained in communication the operator asked me I she could do something else for me. I suggested her to give through my complaints and remarks. My company booked a ticket for 5400 usd, AF-KLM has software problems and know about it and I need to sent documentation to solve their problems. This way a company is not showing respect or loyalty to their customers. The operator told me she was very sorry for me and suggested to give the telephone number of Customer relations. I friendly denied, because it are all known problems and I dont believe it will ever improve really with AF-KLM and FB.