Lost R100 note inside the McDonald's restaurant on the 16th of March 2022

On the 16th of March i was at McDonald's in Vincent East London i went inside to get 3 mcflurrys i had a R100 note with me but i ended up not using it when i got to the counter i quickly went to the bathroom when i came out i looked everywhere for the note i could not find it i was told the person who deals with the cameras was busy at the moment i must leave my details they will have a look at the cameras to check where i lost it. Days went by without being given a call until i went back there the following week when i got there the lady said they knew nothing about the incident and i should leave again my details as their manager was not at work, till this day i have not received a word from them.