Harrasment from ABSA Bank

ABSA, why do you keep on harrassing me when this account no 4 ********** ********** 0 was closed on the 13/8/2018. I received a settlement amount from yourselves on the 8/8/2018 of 678.01, Which I paid in. This account was confirmed by your service desk as close as at the 13/8/2018. Yet you continue to harrass me, this time with a register letter and a threat of reporting this to the Credit Bureau. ABSA must the the worst Bank with the worst customer service in South Africa. You just dont give a hoot about your clients. Sort your records out as this account has been settled and closed.