Terrible Service!!

What have I done to deserve this African Bank!! I realised my bank account was on hold on the 1st of May when trying to purchase using my card because of the holidays I only contacted them on May 03 was advised an investigation has been opened to check why my account is on hold I must email my ID Copy and they will give me feedback. On May 07 at 12:41 I received an sms that query remains unresolved because they can't get hold of me I called them immediately because they didn't call they just that sms but there was no success and I assumed that since it's Saturday they knock off early. On Monday May 10 I called and had to begin the same process all over again because my query was closed. A new query was logged and again I emailed my ID copy. On Tuesday May 11 I went to the nearest branch and was told the very same thing account will be escakated to manager and for investigation then I will be contacted. No one has contacted me even today I called to be given the same BS story of escalating to manager to log an investigation.. 5 phone calls later and a visit to the branch no one knows why my account is on hold or how to rectify the issue. I can't use the funds on my account and African bank is still escalating to manager for investigation 🙄! No one gets back to me, everything is at my own expense.