NO SERVICE FOR A MTN CONTRACT DEVICE NOT WORKING UNDER 3 MONTHS

I'm seriously disgusted by the level of service we are getting from MTN especially for what we are paying. If we cant even rely on big companies like MTN what then? My girlfriend and I took out a combo deal of a Samsung A30 and a Samsung S21 Ultra 5G. The A30 stopped working over a week ago and is just saying "Emergency call only". We have called MTN countless times over the last week and getting ZERO help and we just keep on being referred from the one department to another simply because of an POD. We took out the contract online, surely you should have a record of the sale after all, we are paying for the 2 phones. What must we do now, we paying for a device we cannot use, not the store or customer service can help us. SOMEONE TELL ME WHAT TO DO HERE MTN!!!