Mann Food & Wine

The 2 man selling are not nice at all.
They had 2 sellotape rolls opened on the counter and I needed a tiny bit to secure a letter that I was going to post.
They reused to give me a tiny bit and ask me to buy a roll from their shop.
To make things worst I was unable to pay by card as minimum payment was £2. It was a rainy day, I was in a rush and I had to go back to my car to get money.
Where has the humanity gone ? Is the greed of making a buck took all of their senses ? One of the men was even shouting that they are not a charity shop !!!!
I help people every day, and I go out of my ways to help and to be treated like that is saddening.