We currently have a term-time only arrangement in place with our childminder. We pay a retainer fee for the school holiday. Neither of these points are stated in the contract which was signed over 14 months ago because the childminder said she would 'add that later', but has only ever sent me a picture of the contract so I've no idea whether she added this on pages I have not seen. The childminder is now basically saying full fees need to be paid over the Christmas holiday (we have already given 1.5 weeks paid holiday since September). Do we have a leg to stand on if we were to stick to what we've always done and pay a retainer only?