On January 4th, 2020, I purchased three round trip tickets for UA flights from Denver, CO to Glasgow, UK leaving June 20 and returning July 5th at www.vayama.com for $3, 465 (booking number VUS-[protected]). The flights were cancelled in May and we're due a refund. As of 9/2020, no refund and all email inquiries are met with a form email reply. All phone numbers of the company have been shut down.
After months and months of repeat writing to the company and anyone else and filing a small claims court case, I did finally receive a full refund about 6 months later.