Ok. So Jack has a brother Jim. For whatever reason, they are available at different times. For the sake of argument, Jack is in Europe and Jim is in Australia.
By coincidence, they have a cousin in Italy.
They are able to play actively non-stop for three months.
NON STOP! without any fatigue!
As one account, they are unbeatable on any server, they will not play with money spent on the game.
But if they want to spend money, they don't have to spend much on the game, it is enough that everyone buys 1200 gold at the beginning of the era.
It's no cost for them, and no one has any chance of competing with this "one" acount in three players.
But that's not a problem !!!!!!!
nEwW, I suggest you go to the server where such a multiplayer account is playing and take the challenge. Win a round (if it is at all possible in such a situation), then tell us how much money you had to spend to balance the game of three players on one account and still win!
Maybe then you can spot the problem.
For sure, the company will give you back the money spent, because you will be acting in their interest to have knowledge to improve the game.