VODACOM *********** to resolve the same error, that is happening over and over

For the past couple of years, we struggle every time when we deactivate roaming after arriving back in South Africa to be able to send and receive mms on ********** 053. It seems that Vodacom is incapable of fixing the same error every time. Again, I am unable to receive and send MMS on ********** 053 and the current reference no is A2-B2AB-DI714T, which was logged on Tue 11th Sept 2018 at 19:31 and to this date, it still is not fixed and it is unbelievable that VODACOM's technical department is unable to solve this problem, which occurs every time and they have it on record, yet this same error/problem keep happening. Please get a technician to solve this error/problem once and for all - how can a company that charges soooo much money for communication be so incapable and *********** to solve the same error over and over. Check the history of the account and you will see that I had the problem in 2016, 2015, 2014. I had even been requested to send a screen shot of the error message to Moeriedah Fredericks, who responded that it was received and forwarded to the support team - that was on Thur 13th Sept, but up to now, I still cannot send or receive MMS and nobody has contacted us again to resolve this error. PLEASE GET SOMEONE COMPENTENT TO RESOLVE THIS ERROR/PROBLEM. I am tire of constantly phoning support or the call centre to log a fault for the same problem. Please get back to me asap.