What is the ruling on signing an internet service commitment contract that includes a difference in the monthly subscription fee based on the contract duration (one or two years), with a penalty clause requiring payment of 50% of the remaining invoices if the contract is terminated before the agreed-upon period?

There is no objection to the variation in wages based on the duration of the contract, if it has been agreed upon. Similarly, there is no objection to stipulating the completion of the term or paying half the wage if the contract is not completed, because the leasing contract (ijarah) is binding, and the company has the right to demand the agreed-upon wage.