cheque account

I closed my cheque account at the Garden route mall branch in 2017. I was asked to sign on the electronic pad and told that all was done. I have since then never again received statements or a sms. I have now been contacted by their attorneys, saying that my account is in overdraft due to bank charges. As I did not get any proof from the branch of the closure, I agreed to pay the amount in instalments. I was told that I would be forwarded all the details, which I have still not received. What do I need to do next? Standard bank?