@anna_02, you asked about level 400 - if you play with boosters on a level where you have to get a certain amount of things (in this case cbs) I will use a check mark booster which will help you get the number you need.
My tip would be to come here to the community and read the posts here. I've played CC for years and evidently there is so much more to CC than I've ever known!
Ask for lives and try to win more move and see if you can play some combos hope you win good luck
Hey! Would you like to give us your opinion?