Discovery Bank inefficient service

For every purchase paid with my credit cards, I get 2-3 emails and 1-2 SMS notifications. Twice I called the call centre to ask for only ONE SMS notification to my cellphone for every activity, on any of the Four cards in my account. ONE and ONLY ONE NOTIFICATION is required!!!!! No emails and no notifications to any of the secondary card holders either. Calls to the call centre are being ignored, after making you wait on the line for 10-15 minutes before an answer. Another forced waste of the customer;s time. Discovery Bank is wasting my time by having to read multiple notifications. Before the credit cards were transferred from FNB management to Discovery Bank, I used to just get one SMS. Why did the change to Discovery Bank make the system less efficient? Fix your system, we pay enough in fees to deserve a better service!!