It’s because it’s political.
Ali Khamenei has effectively pulled Sunak’s pants down and is giving him a damn good rollicking. It’s incredibly embarrassing for the Government - they are desperate to save face. The budget on finding this guy is unlimited for that reason. The guy will soon be hero...
The question is, how much is HE paying you NOT to shop him?
Go with the highest bidder obviously but remember with this chap, the situation you find yourself in could cost you your life so be very careful either way.