forced to buy more food "no means no"

my experience at McDonald on the 13 October 2017, was horrible i was treated like a fool and was threatened to be chased out if i didn't buy more. this is what happened at 10:55am i get inside McDonald and there was no at the till to take my other 6mins later one of the stuff finally came to take my order. when she approached she looked miserable and not happy. and didn't greet, i had to greet her, she didn't even apologize for making me wait for 6mins waiting for someone to take my order. the miserable cashier then gives me my ice-cream. i go and have a sit then start working on my laptop. 1hour later one of the other stuff came to me saying did i buy something? i told her yes i brought ice-cream then she said "OK" and left, a few minutes later she comes back again and tells me that her manager said "i didn't buy anything" at this point am shocked because they trying to make it look like am lying, i then showed her the slip and she "OK" she then changes what she said before and tells me that her manager said "i have to now buy something else because i having been sitting there for too long" i told her no i don't want to buy anything else i am good. she then told me "i have to buy something else" at this point she is now forcing me to buy, when have refused before to buy i told her no i will not buy anything else, she them says "if i dont buy anything else am going to have to leave" i told her to get me her manager that said all this the manager then comes to me 15mins later asking if am OK? then i said yes am fine i asked her whats her problem then she said "nothing" i then asked her why is she sending people to force me to buy more food. she then changes her story and says "i didn't say that" i was shocked because the manager is now denying what she told her stuff to say to me or the stuff was lying in my face and i dont respect or appreciated people who lie in my face. McDonald Columbine square stuff and manager are all disgusting, full of lies, unfriendly, not welcoming, undermine customer, think that they know it all, all rude, all are unhappy, all have miserable faces. 5mins later i deiced to leave because i felt very uncomfortable. its very shocking that if you sit at McDonald for one hour you now have to buy more food, drinks and etc and if you dont buy more you have to leave thats news to me.