Poor service from MTN

I logged a query with MTN last month already on the 21/3/2018 and still I don't have a outcome. I received reference numbers. Its the next month already and this problem is still persistent, I'm very unhappy at this service that I am receiving. I have another number and the same problem on that number: ********** . This is a breach of contract by MTN and I'm going to take further action against MTN if there is no resolution soon.

1st reference was:

Dear Customer, Your query has been escalated with reference number 1- ********** 5512. Thank you for using MTN. Have a Yello day 2nd reference 3rd April:

Dear Customer, Your query has been escalated with reference number 1- ********** 2486. Thank you for using MTN. Have a Yello day 3rd reference 4/4/2018:

This query I did not receive an outcome of.

Dear Customer, Your query has been resolved with reference number 1- ********** 2486. Kindly contact MTN within 48 hours if the problem still persists.

4th reference 10/4/2018:

Dear Customer, Your query has been escalated with reference number 1- ********** 3982. Thank you for using MTN. Have a Yello day

5th reference 11/4/2018: No result

Dear Customer, Your query has been resolved with reference number 1- ********** 5512. Kindly contact MTN within 48 hours if the problem still persists.

6th reference 21/4/2018:

Dear Customer, Your query has been escalated with reference number 1- ********** 8982. Thank you for using MTN. Have a Yello day