Account Closed!!!!

I’m a self employed person doing catering and logistics(trucks) based in JHB. On the 13th of April 2022 I was called by a client that needed to hire my truck to transport goods for 2 trips from Pretoria to Nelspruit then 1 last trip from Nelspruit to Kuruman whereby we verbally agreed on a fee of R56000. On the 16/04/2022 a deposit of R17500 was paid into my Absa account then another R13300 was also paid in the account by my client who then called to confirm if payment was received. I then dispatched the goods (tyres&palets of metal) to Nelspruit at a warehouse where we delivered. We waited in Nelspruit two days for the 2nd load which was to be delivered in Kuruman and we did so and delivered at a warehouse/plot over there. The truck drove back to Johannesburg after the the two deliveries and waited about 3 weeks and did the final trip from Pretoria to Nelspruit, on the 19th of May a balance of R1600 was paid into my account and another R17000 paid on the 20th of May I still haven’t recieved the remaining balance. Then on Sunday 5 June 2022 I went to the mall to purchase stuff using that very same Absa account but to my surprise it said insufficient funds I logged on the banking app and all my money was gone!!!!! I immediately called the bank and spoke to a consultant that advised me that the forensics had frozen my account and I should visit the branch the next day which was Monday 6th. I went to the San Ridge branch in Midrand where the consultant quickly gave me a telephone number to call and said I must ask for FAITH JOSHUA she is the investigating officer and she is handling the matter on my account of which I did. Faith told me she works on the ***** division and that there has been ********** transactions on my account…. She then advised me that the above deposits made in my account were ********** and I needed to produce proof of payments for those deposits, I tried to reach my client but to no avail. I then went to the police station and laid a charge and made a sworn affidavit and sent it together with the case No to Faith on Tuesday 7/06/2022. She called me and told me she’d received my documents and she’ll be in touch, Mind you my account is still on hold I have no access to any funds whatsoever so I kept calling as I run a small business and that is the account I use and I needed to prepare for an even this weekend but nothing. I then went to midrand police station to speak to the investigating officer to take him to that Clients home were the tenants at that house told us the couple that lived there had moved out. I called Faith and told her that information but Faith was not hearing it. She and her boss on conference call literally told me to go to the nearest branch and request my account be CLOSED!!! Which I argued and I told them I’ve had this account for over a decade and I cannot just close it out of the blue but Faith’s boss Mduduzi Mkhonto said he was gonna close it himself if I wasn’t cooperating…. I took my ID BOOK and went to the branch and my account has been closed just like that. Apparently the account that made those deposits was a ********** one but without any investigations or any updates my account has been BLOCKED!!!! Is anyone from absa or in the banking industry that can advise me on what to do about this???? Any advise will be highly appreciated