Whether it is possible to add bonus chips more than the max

Question

I opened more games to add: 1000bc, pippy night bc, 500bc and poqery bc challenge. I waited to see what players  will be registered. I waited till the last minute but in meantime i forgot where i added bc. Then i began to exert pressure on all the games several times. The next day i noticed that i miss more than i expected bonus chips. When i looked in transaction history i saw that i spent more than i put it to add. Wery weird happened.

Answer 1

it is possible, it happened to me

Answer 2

don't know