Poor service

I opened an account at Bidvest bank specifically for my policies because I did not want to mix my policies and my savings, upon opening I did everything they required and they delivered my card after I got my funds into their account everything and was ok, weeks later they suspend my account with no notice, and when I called they kept telling me they see no problem and they will get back to, after calling again several times the ***** department said they have no issue they will refere me to their monitoring department, the monitoring department said I should wait 14 to 30 days for them to resolve the issue without them even telling me what the issue was and I had even asked if there is a branch or office I can go to they said no everything will be solved on the email, 14 days past I receive and email saying they need proof of source of funds so I went to Liberty and got all the documents and sent it to them and still my account is suspended with no explanation and no communication. I asked if they can send my money back to liberty or I can give them my personal account from a different bank and no response.