On the beach not replying!

whitey25

help! We are due to holiday in Greece in a few weeks, our first family trip on a plane! Anyway, with the quarantine laws currently in place on arrival in Greece we feel there is too much to risk travelling with a young family. We wish to cancel our holiday and receive a refund for accommodation (as entitled to via otb) and a voucher for easy jet to Re-book next year.
easy jet cannot issue this voucher until on the beach make contact. On the beach however have only sent automated responses to any of my messages and their phone lines are always closed!
do I stand any way of getting money back with a claim back at the bank or travel insurance due to quarantine laws? Both bank & insurance websites state you have to have contact with on the beach....but what do I do if they don’t reply to me! Anyone else in a similar situation?
also, we have one final instalment that I am reluctant to pay but do not want to be seen as breaking our contract!!
any help appreciated!

Caz3121

not sure if OTB have a special arrangement with Easyjet re vouchers but for Easyjet customers who booked direct, travelling outside the next 14 days whose flights have not been cancelled they state "We are currently reviewing our flying programme on a rolling basis. If you no longer intend to travel, you can transfer to any other flight with no change fee* up to 14 days before departure by going to manage my bookings >" (vouchers appear to be an option for cancelled flights)
as their flights for next summer (from 1st June 2021) are not due to be released until Thursday of this week (16th), I would wait until after then and just keep trying....quite a few OTB threads on here, maybe some will have some clues about getting contact.