Still awaiting refund

Our flights due in May 2020 were cancelled due to COVID. Still haven't received refund. Have sent numerous phone calls, live chat and emails. In January 2022 was told that replacement flight tickets which were issued to us had expired on 31 Dec 2021. Another request to Thai Airways was supposed to have been done on 7Jan 2022 and told to wait another 90 days. Phoned again in April someone was going to investigate and call me back. No surprises no call or email. Called them again today still no response from airlines .Told me to go on customer care.opodo.com to complete a claim form but whatever reason you enter i.e refund or general enquiry it just gives you a link to the my booking page. I really think I will never receive my money back ,going to try the small claims court next week.
Genuinely wish I had booked direct with airline.
Customer service from Opodo is the worst I have ever encountered.
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