Poor international speeds on Vox in Randburg area

Extremely slow internation speeds on Vox in Randburg, multiple people in the area complaining, 100-500kb/s download and upload speeds in the evening.

Multiple calls, twitter messages, etc and absolutely nothing has been done to resolve the issue, which not on my line as my national speeds are a full 100mb/s.

Moving away to another ISP asap and taking as many with me as possible.