Every airline has problems with miles not posting.
Agents not scanning your boarding pass at the gate, flight not closed properly, ineligible fare classes, failure to board, pax trying to double dip into multiple programs, last minute changing FFPs while boarding, name mismatching etc. There is ALWAYS a legit reason why points don't post to an account, and ranting on here sure as heck won't make anything post faster. If miles don't post to your account - you should speak with the FREQUENT FLYER PROGRAM you belong to and have them chase it for you. You're wasting your time by speaking to the AIRLINE you flew with to have your points credited to another program.