Bad Vodacom After Service

I have a contract with Vodacom, Home Internet 100mbps where I don't even get Download: 45mbps and Upload 12mbps. I'm paying for the 100mbps. my phone is also Vodacom but prepaid and if I test my prepaid sim on normal 4g I get 150 - 180 mbps. I'm trying to phone 082135 to no success, the call center personnel according to me don't have training on customer service or you just dont get through to them. Tobi chatbot is a lot of nonsense because that doesn't help. I don't know what to do anymore. There is just no after service with Vodacom anymore.