Axxess.co.za is terrible

I live on a farm. I work from home. I'm a medical professional. And my daughter is homeschooled. Our mobile connection with Mtn and Vodacom is excellent. The towers are close by and we have no issues. We have great signal to the towers. But, all of a sudden, despite having a 1TB fair usage policy, we are getting speeds of 1mb with mtn lte wifi with Axxess.co.za. They take days to respond, and each time you get a different person treating you like a *****, saying they want speed tests and they've reset your router with mtn. I cant even send an email with their speeds. My mobile hotspot on the same mtn network is 30 times faster,. We pay almost 1k for a service that doesn't work and stupid customer service agents who don't care and treat us like we are dumb and don't actually help Axxess used to be good. They arent now. Theyre good at sending pro forma invoices, current invoices and price increase emails, but NOT SO GOOD AT SOLVING CLIENT ISSUES. And not so good at 24/7 customer services for technical issues.