Cut me loose!!!!

My unpleasant experience started when I requested to change my banking details as I have an RA portfolio with momentum. My simple request turned into the most dreadful experience as it took months to merely get someone to make the necessary changes(which did not happen by the way) till I decided to move my RA to another company and cut my losses but that again has been an excrutiatingly painful journey because apparently my tax number differs with the SARS client database. I have asked for them to please forward the details they have so I can compare it with the information at SARS but all I got was a meaningless apology with end in sight to my misery . I have been too patient with momentum and their appalling service. Can someone help speed up this process as I have had it with momentum