Attempt billing.

I can cancelled my rain SIM card in February/march 2022 before the billing date to ensure I would not be billed. There was an attempt to bill my account to which I queried but no response. I received an SMs on the 22 of December saying that I will be billed R299. But I do not have an active rain SIM card and I do not have any invoices for December. How is it possible?? After months of not using Rain I am being billed 9 months later? I tried to log a query but no ticket number. Email contact no longer exists.