Ds, Yr 4, is meant to be going on a residential trip in Feb. I paid deposit of £20 and the full amount is due on Monday. Ds has decided he doesnt want to go and I have informed the school. Today I received a letter from the bursar telling me I have to pay full amount (another £67)anyway. Nowhere in the original letter does it say that by paying the deposit one is agreeing to pay the full cost so I do not intend to. Who is right, me or the school?