Worst service from NMG!!!

I have been waiting for proper feedback from NMG for over 2 weeks for feedback regarding my pension withdrawal , There is no tracking of my claim or anything, every time I try to make contact, they are busy and put the phone down while I am talking to them. This is unacceptable. Eventually when I got hold of them, they said that there are 15k applications at Sars and we will only get our money in 4 weeks, BUT where is this communication with their clients. Funny because alot of other companies have already paid out the two pot monies to clients . AND SINCE WHEN DOES SARS TAKE 4 WEEKS