He shouldn't have argued. He should have taken the 24 hours transit they first gave him, said thanks and gone on. Arguing means that now he was denied a visa an

He shouldn't have argued. He should have taken the 24 hours transit they first gave him, said thanks and gone on. Arguing means that now he was denied a visa and the immigration officer is more likely going to write copious notes about it leading to him being denied subsequent visas. If you're ever in a similar situation, never argue. There's no way this will ever solve anything. In some countries, the only way to maybe solve the situation is a bit of money under the table but that's also quite risky and you need to know the customs and ins and outs of the local law very well (not to mention that your home country might consider this to be illegal). And, it usually doesn't work in major airports since there's more control.