What is the ruling on paying extra money (a tip) in exchange for good bread, and what is the solution if that is unlawful?

If the bakery owner requests an increase over the customary price of bread, there is no harm in that as long as the sale is by mutual consent. However, if the state has set a permissible price for bread or supports it, then it is forbidden for bakery owners to increase the agreed-upon price, because this causes harm to people and violates the condition. People must refuse to pay this increase and report the matter to the authorities.

If the employee is the one requesting the increase for himself in exchange for good bread, then this is a forbidden bribe, which is unlawful to give or accept. However, if it is a means to obtain bread with acceptable specifications, then it is permissible for the one giving it to pay it, and the sin falls upon the one receiving it. The buyer should report the matter to the bakery owner or the authorities.