I am in the same boat for Thailand. As travel almost surely won't be possible this year, if they don't cancel the flight all you can get is travel credit. As Thai nationals would still be able to travel they may not cancel flight, thus no refund.
I am less of a fan of Qatar Airlines the way they are handling their rules during Covid than I thought I would be. It was a good idea for them to bring their rules in, sucks people in and then tney are stuck not able to travel, and not able to get refund... So they get their money for long time, and eventually people give up or use the credit just so they don't waste it.
I am stuck with business class ticket that got great deal on. Set to Thailand which likely can't use. Wanted to change it to maldives, but no business promo tickets available in 2020 so can't do it. Tried for 2021, they won't as it is beyond their Dec 31, 2020 date for changing for free. So unless they extend that, I am stuck getting a credit. That credit will only be enough to get me in economy to the Maldives when I bought business. My fault for thinking I got a great deal when I took a risk and got played by Covid and Qatar Aiways.