Super Slow / Unavailable Internet Connectivity

Bad experience recently. About 2 months. Internet speeds dropped drastically on all of the 3 numbers I'm going to list. I have logged a call for all 3 numbers and 1 belongs to my Brother and they called him while I was on hold and he went through the whole authentication step.

I have now Vodacom SR REFF: ***

I have called in numerous times and I'm being told someone tried to contact me whereas they are calling the numbers in question which don't receive or make calls.

1. *** (My Mobile Router) 2. *** (Brother's Home Router) 3. *** (My Home Router)

So I decided to give my home router to my Sister in Johannesburg and it's working fine that side.

I just need to have my internet speeds back on the other two routers because I'm not sure if it's our devices or if it's a tower issue. Some reference numbers have been misplaced as I made numerous calls to Vodacom whiles I was on the road.

Contracts claim they are on 50Mbps but we are not getting anything close to that. I get 0.0 to between 1.23 or at most 5Mbps. I can't even be on YouTube, Twitter, TikTok at times. It goes blank...