Yes, of course. I'm in Europe myself. However if you're a company trying to make money I see $9/mo as a fair price for what GitHub offers, pretty much anywhere.
And if it's really a lot of money then there is plenty of free software that can solve the same set of problems, you just have to install/configure/maintain/modify it yourself. Which should be a reasonable option if $9/person/month is a lot of money where you are.
(I get that for some people obtaining the $9 is difficult because they work for highly dysfunctional organizations, but that still doesn't make it an unreasonable fee.)