Complaint Reference ***

I just got an e-mail from you stating: "Your debit order for account number ***5 has failed and your account is still overdue. Outgoing calls/SMS/Data will be blocked on 02-12-2022 unless payment is received". I do not have an FNB connect account. I don't have any accounts with FNB (I logged back into my old on-line banking profile and it's completely empty). What the hell do I need to do to get rid of you people?