Originally Posted by ISTFlyer

Probably it's again the hotline agents who do not have the power to rebook you on a flight that there is no award inventory available. A sales office would be helpful in your case. Sending multiple feedback forms is also another option.



Just to clarify, the refund process for flights after 5 February 2020 will be made 60 days after the flight restrictions end. Unfortunately, you would need to wait a bit more. ( Earliest 10 August 2020 ).

If this is an ex-EU flight EC261/2004 could help you, also see the post that SFOTraveler1984 shared above.
A chargeback could also work but unless your routes qualify for one of the foreign regulations ( US DoT, EC261, ... ) expect a denial for your chargeback.