hi there, wonder if you can advise me, i am currently with an estate agent and want to cancel, they ask for 4 weeks written notice, but say there contact is for a minimum of 16 weeks, if i write to cancel now giving them actually 17 weeks am i within my legal rights??? they only say that there could be a maxium of 20 weeks and a mimimum of 16 weeks, but it does not imply you could not cancel beween 16 and 20 weeks....