I booked a flight to the Philippines in May 2021 and took out their Premium Package Service which allows me to change my flight. By September 2021, I realised that the Covid situation was still very bad, so I called lastminute and was told that it would be easier to change my flight directly with Singapore Airlines which I did. SA changed my flight as requested. However, it is now obvious that Covid is still a risk so I called lastminute to change. Was told that because I changed the booking directly, they can't help as they do not have the new booking on their system. I was surprised. Since then, I'm being passed from pillar to post by both lastminute and Singapore Airlines, each saying the other is responsible. I paid £1600. Called lastminute to say that I changed my booking directly per their advice but, nevertheless, they said they can't help me. I am very worried now.