what do I do with 150 gems rovio gave me
In the previous event where I got rodimus prime,I one day did not get my tokens due to a glitch.I contacted rovio,successfully giving me 150 gems.Turns out that I really did not need these gems at the end.Also,these disabled the on screen ads for some reason.Should I really contact rovio and give them back the gems?I mean the ad thing is a bonus,but I feel a bit uneasy on how I do not need the things