Saw the vet on Saturday with my dog. They found a lump and took a Biopsy and blood test. I paid the bill (over £200) and thought no more of it. Tonight I get a call to say they had under charged me as part of the treatment wasn't added so I need to pay another £50. They were so blase about it too :(I am so annoyed and not sure where I stand legally? Anyone have any advice please? X