Manager had bad attitude and not helpful

I ordered a waffle and it tasted salty.I asked my 2 friends to taste as well and they agreed it was in fact salty.It was reported to the manager who brought back the same waffle she had \tasted and said she didn't taste anything wrong so there is nothing wrong I should eat it.She also had her thumb in the ice cream.I was not offered an option of a new waffle instead was shouted at and told that I was wasting bar one sauce and chocolate. The managers attitude was disgusting and her argument made no sense!The fact the 3 customers agreed meant nothing and as the customer I was told I was wrong after explaining that I was not enjoying the meal at all due to the taste.I have never experienced such horrible service from a manager!I used to enjoy wimpy musgrave but this has *****ed that!It seems the customer is NEVER right at that restaurant.Utterly dissapointed