Hello batsi We are very pleased that you have joined our king community. Here i am, trying to help you.🙏🏻
The issue that you have mentioned regarding being unable to use boosters on levels 4600 is due to how these levels are actually each tutorial levels implemented with the release of the new Crystal Candies. For this reason, the boosters that can generally be enabled or used prior to entering the level will not appear for use on these particular levels, however they should appear on levels such as 4599 and the levels 4601 and beyond.
The boosters you had previously should still appear in your inventory, but just wont be available for the mentioned level.
If that is the case , it should be stipulated when purchasing any booster packages. I have paid for an hour of boosters that I cannot use , and I deserve a refund.
Then the timer should be paused on the boosters I purchased! I have paid for goods I have not received, that's robbery! Not only an issue with boosters , but the bot is taken off you when you cannot even use it and the hint app highlights moves that you can't even make !!