Due to covid we were unable to fly on the dates as planned, called and moved flights to later date no problem, job well done. The new date was coming up and called BA to confirm when was the latest date we could leave to change our flights as was looking unlikely to happen again. I was told 4 hours before departure. Few days later with over a week to departure asked to change flights I was told No, cash refund was an option but it would be less than what we paid but could accept a voucher for full amount. There was no record of my call so had to take voucher even though I just wanted to move date again. Used voucher but surprise surprise I had to then pay a further £288 for the same flight but fit a more off peak traveling time. When questioned BA about this they just copy and paste automated response and don't actually answer any of your enquiries.