Dealing with Singapore Airlines has been so frustrating...

Submitted my refund for a June 3 business class award flight LAX - SIN and a June 13 business class award flight SIN - SFO on April 24.

Waited patiently and finally got the refund notice email. I check tonight and noticed that the taxes/fees have been posted back on my credit card but only 2 of the 4 passengers got the points back. I called Singapore Airlines and they have no idea and can't seem to fix it. They say that the refund has already been processed and completed. I told them that they still owe me 180,000 points back and their response is that they're gonna look into it and call me back. ARGH!