Bad Manager and Company policy

So yesterday I was assisted by a very friendly lady at the Kiosk NetCafe Milpark Hospital, I then wanted to leave her a tip or buy her cold drink as a thank you. She told me she's not allowed to take it, then I thought no let me then tell her manager to facilitate this. To my surprise when approached the manager she gave me such dismissive attitude as I'm bothering her with this. I asked why are they not allowed to take tips? She said I don't know it's company policy not even showing any concern at all then she just pointed me to a tin box to leave it there, then I said but no it's for her not the company or everyone there. She's like mam I don't know and dismissed me.

Her attitude is shocking to even think that you put people like that to manage a team is shocking to me, if she treated me like that a stranger how worse does she treat the team.

Also what kind of oppression is that we cannot give our own money to say thank you for the service? It is is our money and giving it willingly? Those people work hard the whole day for their families and we all know that they get minimum wages and then what do you guys do again; cut off tips?????? What??? Are you guys serious? I'm totally disgusted to say the least. Do better as a company and hire managers who are skilled to treat human beings with respec