I requested PTO for I trip I went on back in June 2 checks later I still gave but received the money for that PTO what should I do?

Location: Denver, CO

I 24(f) am a commission based hairstylist on a contract for a hair salon in my city. In my contract it states that I have 32 hours of PTO that I can use until the anniversary of my start date. I decided to use this PTO for a trip I had taken to Hawaii from June 9th – June 13th. The PTO was supposed to be added to the paycheck I received when I returned from my trip. However, I never received the money, yet there is a check stub for the PTO in our payroll portal as if the payment had been processed. The problem is there is a check stub for it but it’s money I’ve never received it. It is now July 22nd and I still have not received the on any of my checks. Meaning I have gotten 2 checks since first requesting the PTO that I haven’t received the PTO on. I have a check coming this Friday. I asked the salon owner and salon manager if they could ensure that my PTO is added to my check this Friday and this is the response I received from the salon manager. “Cannot confirm or deny at this exact moment. You will be notified when it happens. Thx.” This will be the third check that I have not received my PTO. There is a check stub for the money that I’ve never received and I am severely behind on bills because I have not received my money. Is there anything that I can do about this? What legal action could I take against the salon owner for this?