I think he's a troll but the fact that he was able to get OP's telegram handle bothers me. I hate how some users are so obsessed with merit and how far they are willing to go to get it. It says the phone number is from Bangladesh, and since this person was pestering you to check your thread, it casts suspicion on everyone who has posted on that thread recently and are yet to get any merits.
Even if I could match a user from Bangladesh who posted on my merit thread and possibly on the translation one, maybe involved in some scam project in the past, I couldn't point him out with enough degree of certainty to be able to send a red trust.