220MS+ ping issues on WOW! Internet

I have WOW! internet and for the past few weeks I have been getting progressively worse ping spikes at the same time of day. It's at the point where when it hits 7PM I pretty much have to go do something else until 12AM-1AM because my ping is 200+. Is there anything I can do to fix this? I called WOW and they pretty much told me to shove off. EDIT: It appears that I am not alone with my problems. I think our best bet for getting this problem solved is for Riot to contact WOW directly.
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