Flight successfully rebooked by TravelUp consultant Nash Davies. Following a very frustrating and unexpected situation of British Airways (BA) cancelling my outbound flight from UK to USA without any notice to me or TravelUp (TU). I only noticed when logging onto the BA app following a CheckMyTrip app notification there was a change in the time with the return flight. I strongly recommend regular flight status checks using the BA website/app. On BA app when I checked the small time change I also noticed a complete cancellation of part of the USA to UK flight with offer of an alternative flight which I accepted. This is when I noticed the UK to USA flight had completely vanished without notice. Resulting in me calling TU to investigate. TU themselves handled my call calmly and effectively which is expected when paying for the £25 gold service. I don't know if I would get the same service without the gold service. Even with the gold service it is best to fully use the 24/7 freephone number. 2 diff calls made at 8pm had me on hold for 45mins before I could get through to a human. I changed tactic & called at 6am for an update and spoke with Nash who managed to contact BA and rebook the UK to USA flight at a later time on the same day which was not ideal but better than a full cancellation. I was offered a full refund in the form of a voucher valid for 1 yr or rebooking the UK to USA flight there and then. The call with Nash was no more than 45mins from start to finish.