MTN SOUTH AFRICA UPGRADE AND ACCOUNT MIGRATION DELAYS

I have been a loyal MTN customer for more than 20 years. I have at least 5 active numbers on my account. My primary number is due for upgrade and I have been battling since 05 January 2021 to have this usually simple process completed. I was informed that MTN is migrating all old accounts to there new system and could therefore not get the upgrade advertised on their January catalogue. This is completely strange since I have received several prompts via telephone, sms, email and MTN APP for their current promotional upgrades. I am utterly dissappointed with the ridiculously long delays and I am considering cancelling all the numbers to take my business to a competitor.