Complain about the Bad Service

I am not happy with the service i got from momentum while trying to withdraw my money, firstly i started the process then I was told i was going to receive an Msign link, days later the link was not sent and no notified me, i then called them and they Consultant explained to me that they had an issue with the Msign and i should start the process again, i then understood and started all over again, i then recieved the Msign, then the progress moved to awaitng SARS directive which SARS takes only two days or less, but today 4 days later i am still waiting. well while i wait i recieved an email stating that i should send my ID and my a copy of my bank card which i did, then they requested for Proof of residence which i sent but my application is still stuck on the same stage. today i called the offices again I had to hold for 30 minutes only for the consultant to tell me that on his side my application is not moving so i should start again, i am very much frustrated in this process and they are not even helpful, my employer has been paying money over the years and now when i am supposed to claim there are issues. on the phone the guy just pushed my call to some department which the phone kept on ringing again and again so i had to hold for an hour again, i decided to hang up, this is not fair