Web africa sucks

so ive been paying for a 100mps line for almost a year now, since the beginning of 2020 the speed I've got was between 1mbps -30mbps . These would alternate but never above 30. For the past 7 months I've been emailing and dealing with web africa. Doing as they ask. Doing a test via lan cable, doing a specific laptop test that they needed. Which all showed them the speed of 4mbps, 5mbps, 19mbps, 29mbps etc, none reaching anywhere close to 100mbps. They sent an email claiming they didn't recieve the attachments, I send it again. I get a call from telkom saying there's nothing wrong on their side and never hear from web africa again up until today when I recieved an email saying the issue has been resolved, but nothing has. Im still getting speeds of 10mbps on a 100mbps fibre line