Like many others, I had a holiday booked with Sykes due to commence on 20 June. The balance of payment of £968 was due on 9th May. I was unable to change the date of his holiday on line (the system only allows holidays up to 14th June to be changed) and cancellation would have involved charges just short of £400. They patently cannot deliver this product under current restrictions yet still persisted in sending me reminders about final payment! After a frustrating exchange of emails I finally managed to speak to a member of staff by telephone this morning. She was brilliant and whilst I held on line she contacted the property owners for me and negotiated a re-booking for 12 months hence. It cost me a £30 admin fee but considering their previous intransigent position I regard this as a good result! My advice is don't try to deal with this online. Ring them. You may have to wait for an answer (48 minutes in my case) but the persistence will pay off.