MTN poor service on correcting data and voice data on a contract

I took out a contract in November 2020 and was promised a certain amount of extra data and voice data every month on my contract. After I noticed that I did not receive the extra data and voice data, I started contacting MTN customer care to correct my contract. My first contact was on 17/3/21 and has had contact with them at least every two weeks since then either by telephone/e-mail. Last contact was 22/6/21, but up to date, they only ESCALATE the problem every time I call.

Until today, NO-ONE of MTN has contacted me or tried to discuss this matter with me in order to have it resolved. There is a reference number on this matter with MTN. Apparently the wholesaler department has to fix the problem.

My last e-mail was sent to *** on 22/6/21 13:00 and the following people has read my e-mail: Andrea Elijah, Kelebogile Letlhabane, Maurisha Olivier and Rabelani Tshivhase, yet nobody has responded back to me.

I need an urgent answer of my query and would like to have ALL voice data and ALL data as promised to myself when I took out my contract from November 2020.