cant browse and ping is too high to do anything

I have been having a problem with my internet line for the last 6 months, I have been told by mweb its telkom and telkom says its mweb. My line has been reset and my router restarted over and over and nothing changes so what the hell is going on with my internet? I dont excessively download so there is no reason for me to be throttled yet it feels like im being throttled and its always at the same time everyday when my husband is home from 4:30pm till 11/12pm at night and he plays online games. So am I being throttled for gaming being 4:30 till 12pm at night?!? I cant even use my internet browser the internet is so slow. I am paying alot of money for this internet and i am paying for UNCAPPED internet not to be throttled so WHY am I having so many issues with my line? If this problem is not sorted I will cancel my internet and take my business else where and I will NOT recommend Mweb to anyone I know, I have never had so many issues with an internet provider