Debited more money than they should have

I bought two gas heaters that were on special online, my total that should have been debited from my account was 1998.00, they debited me 2057.77, and this cant be a delivery fee because I opted to pick it up, its always one story or the other with picnpay, now you are even robbing me of money, I dont know why I am even bothering to buy from you when you have so many competitors around