Is it permissible to take a financial compensation (10 EGP) for each deposit and withdrawal operation via the e-wallet, with the knowledge and consent of the employer? And is it permissible to take the amount that increased in the salary after returning it to the employer and it was found to be an increase in the salary?

There is no objection to receiving payment for your service from your employer via an e-wallet, as long as she is content and aware of it; this is based on the Almighty’s saying: "O you who have believed, do not consume your properties among yourselves through falsehood, but [instead, let there be] a trade [deal] by mutual consent from you," and on the Prophet’s (peace be upon him) saying: "Indeed, selling is based on mutual consent." It is sufficient to inform the employer that the total amount is 10 pounds without detailing the fees. Similarly, there is no objection to reclaiming any excess amount once you know it is rightfully yours and an increase in your salary.