Sub standard service from OpenWeb

When I initially signed up with OpenWeb in June 2020, It took them three and a half weeks to deliver the sim card. This was start of the sub standard service they provided. During the month of September my capped data ran out. I expected them to provide the new data on 01 October 2020. However, after several emails, 6 days later, I received the new data. During the month October 2020 my data again ran out. I expected them to provide the new data on 01 November 2020. However, that didn't happened either. We are sitting on 02 November 2020, I still haven't received my new data. The second month running, same problem. I have sent them several emails again. This time they responded by blaming Telkom, according to them, Telkom apparently have capping problems. My frustrations are: they don't communicate to the client regarding any challenges they have with the service, nor do they take ownership of their short comings.