I bought bf4 from them in May and the key turned out used, I paid for the g2a shield and contacted the resolution centre straight away, and let me skip the finer details and just tell you, for each message I sent them it took over 2 weeks to respond, at the end I just requested a refund with paypal, g2a did not respond to any communications during the refund process and paypal ruled the case in my favor at the end, but it wasn't over yet, weeks later I received an email from g2a, asking for evidence to support my claim, after the case was already resolved!