Somewhere along the way, Webnovel changed the way bonus coins can be used. Since bonus coins expire, they used to be used first. Now, bonus points are only used when regular coins are completely used up. So basically, we have to go to zero on regular coins to use bonus coins. If you don’t use up all your coins any time you get bonus coins, they will expire. Webnovel should change this back to the way it was before and let us use bonus coins first!
Bonus coins can’t be used until regular coins used