It's really sad to hear about the circumstances. As of now, I dont think any company would be in a position to render you mystery survey work due to the COVID-19 and lock-down situation. But hopefully in a month or more, the surveys would start again on field. If I could suggest, as refereed by your friend, no doubt Trans MR is a very good option but you also try out some other companies like Bare International, HS Brands, Floor Walk, Channel Play, they are also good with the quality and quantity of assignments and also the payout.