Mweb/Telkom Lte - Data goes missing

I am on the Mweb/Telkom Lte product

Warning... the system does not work correctly, data is being ******. I have notified Mweb on 2 occasions. This last time, I lost 20G. It happens when you top up data. This "once off" data gets used until your recurring monthly data comes in. Whatever data you had not yet used on the once off purchase, gets frozen until the expiry date, and then disappears. Instead of finishing the "once off", the system immediately starts using your new monthly recurring data allocation.

Mweb refuse to even acknowledge the issue and duck and dive every query or complaint. I actually think they have made an art of how to avoid dealing with issues. Long telephone queues and a terrible fault reporting system that never deals with the problem. Its not even that complicated, there is an obvious system fault. Everyone using Telkom Lte that buys topup data would be affected. I have proof.

I have been told that I have to wait for another year, before I can leave Mweb/Telkom Lte, without being penalised.

In addition to having lost chunks of data, the line is shocking!!! The worst. I cannot work from home, and have had to get an alternative wifi product. Telkom Lte gives me about 2mbs download speed and next to nothing upload speed. Technical people from Mweb have told me that the advertised speed is not guaranteed and suggested that I pay the Telkom "exit fee" and go over to MTN Lte, as this works. A Telkom technician that came around said that Meb have given me the incorrect modem. Who knows?