بسم الله الرحمن الرحيم
(1 & 2) Both these conditions are forms of bribe. As it is sin to take bribe in the same way it is also sin to give bribe. The holy Prophet Muhammad (صلى الله عليه وسلم) has cursed both who gives bribe and takes it.
عن عبدالله بن عمرو قال : لعن رسول الله صلى الله عليه وسلم “الراشى والمرتشى”. (مشكوة: 2/326)
Hence the best way for you is to save yourself from this haram act. But if sometimes it happens so that there is no other way except bribe then due to compulsion you may give some bribe for the sake of your business considering it bad and doing taubah and istighfar for the same.
Allah knows Best!
Darul Uloom Deoband