P2P seller ads restricted to me

lately, i purchased some USDT with a pleasant worth from a number of vendor, however i can't purchase from them anymore, the advertisements says RESTRICTED and when i click, binance says "Sorry, you don't meet the necessities set by different parties"

but there's one sample :

1. they all the time request me to send a proof of cost by way of whatsapp
2. after that, they ask me why i purchase USDT
3. i stated it was for USDT arbitrage
4. they all the time say "your profit could be very small"
5. they all the time point me to attempt Futures, especially with ETH
6. they all the time advocate me some less recognized trade aside from binance, like BitxEx, Bitec and IDO (idk if its rip-off or not, i never attempt them)
7. they all the time ask, if i want more USDT
8. principally, they all the time says doesn't have USDT left to promote
9. a few of them says will supply me the identical worth, however all the time publish a far greater worth
10. their account is have a great popularity
11. i never received scammed by them
12. they're VERY polite

virtually EVERY vendor that sells with good worth have that sample, i have to know what is occurring right now. lets talk about