nedbank poor service

my business was initially banking with First national bank and never had a days problem. then i had app**** for business funding with nedbank and was granted as a overdraft. when i had signed the contract for the overdraft there where conditions that i needed to adhere to. one of the conditions was that the overdradt with FNB needs to be cancelled within three months but due to the pandemic we currently facing it took me abit longer to cancel the overdraft with FNB and i also had lost a family member during this pandemic. my whole family was covid positive during the lock down and we managed to recover. i must truly say that nedbank is a very inconsiderate bank, sometimes one feels that grass is greener on the other side, this is not true , its worse from my experience with nedbank so far. if there was a breach nedbank was suppose to give me a warning or write me a letter to state that you are in breach and the bank is giving you so many days to remedy the breach, in my case Nedbank suspended my business account without my knowledge and at 4pm in the afternoon sent me an email to state that the account has been suspended due to CPIC returns, so i had called the business manager to find out what CPIC returns she is talking about but then she says its the companies tax returns, so i had two conflicting stories. The letter form Nedbank mentions CPIC returns where outstanding and on the other hand the business manager is claiming that its tax returns. the other thing i want to mention is that before the account was suspended i had booked two payments with my chinese supplier and the rate of exchange was at 14.50 to the usd and now due to level 3 the rand is about 15.50 to the usd. now the there is huge foreign exhange loss which i have to bear, is this fair, the bank never took all this into account when suspending the bank account, now it seems like the bank has left me in the lurch, i have containers that are ready to be shipped, the suppliers are waiting on payment and Nedbank has suspended my business bank account. its like the bank has brought the business down to its knees and with dont care attitude. i just want to mention that i gave Nedbank so much of business during Covid its amazing to be treated in such a manner. then the business manager says to me if you are not happy i will give you the banks complaints email address and you welcome to send them an email. i am very unhappy how nedbank was handled me as a client. i would never recommend Nedbank to any other client , i wish i stayed with FNB. its been over 7 days now that my business account is still suspended although i have remedied the breach with the bank. i am highly dissapointed and really looking at taking my business to another bank who can provide me an umbrella when i need it. i thought during this pandemic the bank is on the clients side, they more worried about protecting themselves. nedbank was really shown me who they are and what they represent.