Yes contact the GM asap. Please dont think the GM cant help you. Your server has to "check out" nightly befor leaving. They can pull up every sale, cash and credit, under servers name. When GM pulls up charges it will show bill total and tip. Sounds like your serve decide to take a bonus. Contacting the GM should handle issue buy server being terminated at the least so it doesnt continue to happen to others.
Contact G Manager
The g.m or manger can't do anything for you contact you're credit card company dispute it they'll get in touch with Applebees
Contact the Mgr right away.
I would contact the manager...
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