We have fixed the Merchants Trinket you should see the fix tomorrow July 31st. European shards will see this change tonight during your normal maintenance cycle on your shard. All existing trinkets will have their charges reset to max 5% to 90 and 10% to 40.
We would also like to recommend you do not purchase Mythic or Advanced character tokens from anyone in game out of of game at this time. Purchasing from the Origin store is acceptable.
Thanks everyone!