I can testify once you hit a tricky point with GitHub support they're completely useless. And when push comes to shove they'll start playing games - leaving off names in emails so it can't be traced back to a specific employee, sending response that look like they're internal comments, etc. Honestly it was a level of immaturity I didn't expect from GitHub. I went from someone who owned tshirts, hoodies, octopints, etc to someone that only uses them if my work forces me to.