Incompetence

I gave 30 days written notice on 21/08/23 as per the contract and received no confirmation.i followed up on 05/09/23 and was told to talk to the crm (Santanna). I tried calling/ watsup and via email, to no avail. I called the accounts again and after a few minutes I was told that my notice was confirmed via email and that no dt order would be processed end September. An incorrect email address was used I received an invoice dd 25/09/23 with the monthly fee due 25/09/23. I sent an email to query the invoice and no response. I called and spoke to Tauhirah and was told that it would be investigated. I received an email from accounts on 02/10/23 informing me that my account is suspended and the payment method has been changed to eft. Another email from Tauhirah that the matter is still being investigated. Today 03/10/23, the debit has gone through. This was what I feared would happen. This incompetence is on another level.