ok the site is a sitem don't focus in my platform...... that's not mean nothing for my friend.. he did different job, is not connected to my business... only me I am a bad boy...
I tel him to send to tether a message if need something like kyc
The situation now seems very strange, but your friend still has to write to Tether for appeal.
He probably has to provide KYC, business records, source of funds, proof of address, and whatever.