MTN Bad customer care service department

I have done an on-line upgrade on black Friday 29 Nov 2019 the special MTN had was 50GB and 10000 MTN to MTN airtime for every month for the next 6 months. I have received my phone and NO black Friday special data and airtime. I have logged a query with customer care services which escalated the issue, where by it was closed out a week later and no results. I have logged another 5 complaints with the customer care services where they only ignore the issue and the complaint. so not sure where the CARE and SERVICES are in the customer care services! MTN done care about there customers after they have signed a new or upgrade contract and will only be interested in a customer once again when they are due for upgrade then they can't stop phoning!