Very very poor customer service

In the month of March alone, I have had my internet cancelled twice without any mandate from myself (with cancellation lasting more than 2 weeks). My account is paid up to date every month yet I am not receiving the services I paid for. On the first instance, it I have had to literally go into the Vox Telecom offices and tell them i am not leaving until they fix it because no one from call centre was able to help. This is now the second time and i cannot be going through that anymore. I need my refund for March, and I am canceling the contract since Vox cannot provide me with the internet I've paid for.