Inability to close the account

I have been to the Midrand Branch twice to close my Standard Bank account and to date the account is still active. I am still receiving SMSes stating that I must deposit money into an account that is closed according to my records, as well as statements. May you kindly close the account as I no longer wish to be your customer. April I visited the Midrand Branch and requested the account to be closed, and again I visited the same branch in May for the same reasons.