I am an avid clash of clans player and no one has ever managed to hack the gems system. The game is server based and there is nothing you can do client side to get more gems or anything. If you have truly found a glitch, make us a base with maxed walls, spelling out BTC with the walls.
If not, your just another scammer.
If you lived in PH you cant say that
Thread starter here is not active anymore and they cant show you maxed walls just to prove they're right because they'll not spending gems to maxed the walls and you need more gems to do it. If the system detect so much purchased of gems they'll probably question and investigate where's those gems came from.
I get your point but it's not hacking the gems system. Sellers legally purchased the gems and after that they'll refund the payment but the purchased gems will still in there client's account.
I won't recommend to buy gems from those person if your from other country. The best way to do this is upon meetup so you're 100% sure.
80% of bug gem here in our country is fixed now. They abuse google refund policy. Now they have another trick but for some reason they keep it private to prevent abusing. That's why buying gems here have a little bit increase in there price.
But the bottom line here , play fair. Don't buy gems if not meetup to avoid being scammed. I never buy gems from those gem sellers but I see from myself 100% that this bug is working.
(Hope my English is fine lol)