Dont get this isp for games

I asked so many times for help they juwt wont help me!! If you want to get this internet for online gaming dont they are the worst rather stay by telkom than this !! Keep getting lag spikes and they just won't help me they told me they cant find anything but the technician was sitting next to me while i showed him on my games that my ping spikes to 300 -500. But still cant find anything i am soo unhappy