How to buy coin safely

Hyy guys how to buy coins safely
I got reset coin be ea, fortunately i already buy some player, so ea just cut 2000 my coins.
I already use coin imidiatly but ea still.cut my coin.
Any suggest to using coin safely.

You can't... It's a risk.
I would advise you though to put gold and NOT bronze cards for 10k each. This would look less suspicious to EA then. Again, it's at your own risk.....