Number plate fitting charge

I went to get new number plates for made for my car at Mr Lockey. It was a very hot day and I wasn't well and the unhelpful and surly staff members told me there was a R140 charge for fitting which I told them isn't on their website. I didn't have the extra money. I am an old woman of 84 and I was upset by this but a young man next to me gave me R200 to pay for the fitting. I was overcome by his random act of kindness. I will never go to that place again as the staff are very unhelpful and uncaring and rude.