ABSA - Suspected Internal ***** but Customer Service is Appalling

Over the past two days I have received fifteen SMS's from ABSA stating that my homeloan debit order has changed. When I contacted Nedbank homeloans, they confirmed that nothing at all had changed. Yet these SMS's continue. I tried phoning ABSA but their customer service is appalling. I was put on hold with cheesy music for at least 20 minutes and eventually got through to someone who has clearly had no proper training. I can only suspect attempted internal *****. ABSA's ***** hotline was equally useless. They clearly don't take this seriously at all.