I work at best western in Nevada &..

They told me today I would receive a $10 bonus for cleaning over 15 rooms, well three of my rooms were DND, so after my work day (over 8 hours) they told me that I no longer qualified for the “bonus” they also came to my room around 5 to tell me I need to hurry up and that the housemen were already gone for the day.. I don’t know what to do because this is my big boss telling me this.. it seems a bit unfair that I was promised a small bonus and then it was taken away because the guests didn’t want any service.. what the hell do I do? I get it’s just $10 but I need it right now with how my life is going..