MTN Service level stinks

Since Monday 9.11.2016 afternoon, here in Steynsburg EC, the MTN coverage stopped working on my MTN modem. I e mailed till date +- 9 e mails to MTN - Phumi Sijako at Customer-care. I included the sim cellphone number, sim card number and even activation date of the MTN sim card in July this year. I keep on getting replies from Phumi that the number is not a MTN number nor is the Sim Card a MTN one. I told her , 4 months down the line, I used this MTN number and placed 10G data on it monthly. However, 4 days later no joy or assistance. My MTN number was clearly deleted from the MTN Network by error with all my data and they dont know how to sort this out. I was forced to purchase 3G at R299 Vodacom Data for my Vodacome Phone yesterday so that I can still make use of internet and communicate via e mail with MTN. Today I was referred to Mr Nel of MTN at *** by Phumi. 9 phone calls later to Mr Nel, hanging on 4 - 5 minutes, a time , no answer. I e mailed again MTN, however, no assistance in this matter.