On 02-May I booked one way ticket to Manila from Incheon (Korea) after the Philippines Gov announced foreigners could enter the country. The company I used was online travel agent uk. mytrip.com. Booking reference TW9LT6 (OZ). Order No L8MUBA. Flight No OZ703 23-May-21. After the Philippines Embassy clarified that I could not obtain an entry visa I decided to cancel this flight as per the agreed conditions of contract. Since 09-May I have been trying to cancel this ticket and obtain a refund however I just keep receiving the same automated responses from various members of their Indian based customer support. The mails each time request confirmation I wish to cancel and display the cancellation charges. So far I have had no action and confirmation this ticket is refunded. The Asiana Airlines desk cannot help as all cancellations must be processed through the merchant. Please advise what I can do to recover the GBP501 I have spent on this ticket??