Shocking (non-existent) service from Vodacom.

Vodacom called me at 02:19am. Absolutely shocking. I have also been trying to fix my internet at home for months. I have a Vuma fibre line and Vodacom is my ISP. I have been paying for a 500mb down and 200mb up for over half a year and I have been only getting 100mb down and 100mb up. If you all into a Vodacom store they cannot help you. When you call the call centre no one helps you. And best of all, the line drops when you are in the call centre. Before you start a conversation the agent you are speaking to asks you for your number and alternative number incase the line drops. The a ****** cellphone company. Should their phone lines not be perfect?