I currently hold a Feltham to London Terminals annual gold card (valid until 30th September 2019) which cost £1912. I've moved house, only one stop further from London, to Ashford and so need to change this to an Ashford to London season ticket. What is the best way of doing this? Is it best to get a refund on the remainder of my current ticket and get a new one? Or is there a way of changing it over for the rest of the validity and keeping the gold card? I'd need the ticket from Ashford valid from the 1st March ideally but could delay it by a week (to Monday 11th March) if that makes any difference? Lots of questions there. Any advice gratefully received!