Poor Handling of previous complaint

Absolutely pathetic service received. I recently put in a complaint about these "Your next meal voucher is on us"messages received via the app on my account and my fathers account (I have signing powers). I am not interested in this AT ALL. I requested that these messages be removed as they are extremely irritating. The Absa complaints department closed the case saying that the Rewards department have received the complaint and will handle the complaint. After that, I received no communication at all. I went into the bank and called the rewards department but was cut of twice during the call so I left as enough of my time was already wasted. I have since changed removed Marketing consent options from both my profile as well as my father. My father never had general marketing consent to start with (only Credit Marketing Consent) so he should not have been sent these messages to start with as this is in breach of the Consumer Protection Act and the agreement my father has with Absa. If I receive any further messages (now that ALL Marketing Consent has been removed), then I will approach the Ombudsman for further action. If this complaint is forwarded to our site codes, then I will be livid as this is not a branch problem.