MTN - Whats going on?

Extremely dissatisfied with your after sales MTN, Since inception of my contract with you I have ALWAYS, month after month,purchased additional once off data packages when mine was depleted. Today I am told that is not possible, I have to hold on for 10 to 15 minutes, I cannot use the MTN APP, as I have set a limit and have used that already. I am unable to work from home today and had to go into the office, which is not recommended during this time. My calls to you were cut off twice, on 3 occasions today, your call center champions could not assist me due to your systems not working and I was instructed to drop the call and call back - not even the decency to offer a callback, when I finally do speak to someone I have to verify ALL my details, what was the purpose of you implementing a security pin? which I've always used before. Your staff was not able to help me add an additional once off data bundle purchase. If this is the new method of business, I will be sure to move my business elsewhere, especially during COVID, would have expected more from you.