Usdt cost ONE DOLLAR to send. His issue is that he uses crypto.com who use a third party to deposit gbp funds using a credit card which charges 3% hence 4k costing £120+. The rest is due to the atrocious gbpusd exchange rate.
I deposit for FREE to kraken. Costs 0.26% to convert to usdt and one dollar to send to casinos 4k costs just over £11. And did you see the video where he mentioned withdrawing 250k and paid 20k in fees!!!!!!