M.F.
When she consistently (a week at least) uses the toilet or tells you when she has to and has no accidents, try setting a "Big Girl" date on the calendar which means the reward system stops because she is a big girl. You can have a small celebration dinner and movie night to commemorate this achievement or something else special she helps plan with you. Too many parents today are trained to take their child to the toilet and the child is truly not trained - it's a trial and error system for awhile - and the daycare needs to be doing the same thing you are or close to it at the same time or mixed messages are being sent to her. Good luck!