Is it necessary to inform the company of the new address after marriage, which will lead to a reduction in transportation allowance and salary, knowing that this reduction will affect one's livelihood?

The agreed-upon contract with the company regarding transportation allowance, which fluctuates based on distance, must be fulfilled, as Allah Almighty says: "O you who have believed, fulfill [all] contracts," and as the Prophet (peace be upon him) said: "Muslims are bound by their conditions." Therefore, the company must be informed of the new place of residence to avoid taking money unjustly, as Allah Almighty says: "And do not consume one another's wealth unjustly."