Lastminute.com Ignored Medical Refund For Daughter’s Flight Ticket

I booked flights via Lastminute.com for myself and my daughter, but due to a very serious and unexpected medical situation my daughter was unable to travel. She was taken into hospital with a cancerous tumour and had to undergo a 3.5‑hour operation, which meant she was medically unfit to fly. I therefore flew alone from Gatwick on 4 January without my daughter and requested a refund for her ticket on medical grounds. Following the instructions given, I completed the EasyJet serious medical form and submitted it together with the surgeon’s and doctors’ reports clearly confirming her condition and the operation. Despite providing all this documentation, I have not received any response. In addition, SunExpress informed me that they sent €47 back to Lastminute.com on 1 January, but when I contacted Lastminute.com they told me they had not received any refunds from anyone, which is extremely frustrating and upsetting. I am requesting a full refund of my daughter’s ticket, which cost £85.00, due to her serious medical condition, and clarification about the €47 that SunExpress states was already refunded to Lastminute.com but has not been passed on to me. I expect this matter to be investigated urgently, my refund to be processed without any further delay, and a clear written explanation of what has happened to the money already returned by the airline.