I have 3 accounts. I have only spent money on my main account (about 20 dollars). I linked all accounts to different emails right out the bat. but after about a day a message pop on my main account asking to bind account with a reward of 200 gems, I pressed ok and the account got changed into one of my secondary accounts. now I'm trying to open my main account again and this message appears "This Play Games Account is not linked, please enter a different account"
while on my secondary account I can see that my main account city still exists on the map.