Refusing to accept my payment method

This evening I decided to visit an OK Foods. Keep in mind that I have never been to an OK for many a year. I decided its time to change that and was thinking of replacing my SPAR close by with the OK Foods. When I was supposed to pay I took put my handset as Samsung Pay has become the new way to Pay and safer for me as a client. The teller calls the manager for permission to ask if she may accept my form of payment and he refused. I asked why and only after the second time he says its a risk for them. Really!? Firstly...what kind of clients do you keep? And have you as a sales person just told me that you are not willing to accept a legal way of payment? Needles to say I now understand why most of the OK stores in the country had disappeared or gone into hiding. I wont be using the OK for any more purchases again. If I dont ever use them again then its to my benefit. And to the dirty, grimy OK Foods in Laudium...I have been to ****a shops that has given me better service than you have. Good riddance as you are not doing me a favour by selling me your goods. There are way better places out there that I would rather spend my time and money at