I was there for cash...

I was there for cash back and the cashier that was assisting me told me she doesn't have money n that was that I asked her to ask money from other tills or cash office I was told to come back later as they did not have any cash with them they promised I will have it later when I came back all of those staff members that were on the shift were not there and the store manager told me they did not have money I am not happy at all with this store services I how they handle things this has been happening almost all the time and when a white person ask for cash back their given even the cashier will go to cash office to get it but when it's us blacks we are told there is no money even at the cash office 💔