Business and Dealings

Income of a salesperson who swipes customers credit cards

Q: I work for company called NEXT who’s CEO has political support for Israel.

Also the company provides a credit card for the customers which has interest in it as well. As I work as a sales girl I have to be on the counter/till while on the till sometimes I have to take the credit cards from the customers as their means of payment.

Can you please tell me if my earning is halaal?

Using someone else's student card to get a discount

Q: I currently live in Pretoria and work in Jet Park (I travel about 128km a day to and from work). Currently I use my car everyday to work and back. I have previously looked at the Gautrain as an alternative, however it worked out a little too expensive for me.

Recently, my small brother informed me that he receives a discount on his Gautrain trips (as he is a student) but doesn't use this discount as his campus isn't so far and it's easier for him to drive. As he isn't using this discount- He had offered it to me to use his discount to travel to work.

My question - Would it be permissible to use his discount for my benefit (considering he is a student and I am not)?

Contacting a store after paying less for an item due to an error in their system

Q: I paid less than I should have when I went to the supermarket a few months ago due to an error in their checkout system. I messaged their customer service online on the day and they said “Thank you for your honesty. There's nothing much we can do about it at here at Customer Services but if you do wish to get rid of the difference you can return to the store and speak with the Customer Service desk.”

Am I sinful if I don’t go back and return the difference? I’m not 100% sure if I still have the receipt.

Terminating a mudhaarabah contract

Q: In a business investment, if a person invests his money (let say 100%) and another person invests his efforts and they share the profits as per mutual agreement, then I wonder how this business deal ends in the case where the investor wants to withdraw from the business.

Does he take back everything as he invested 100%, and in general should the person who wants to take up the business have to pay the prinicipal amount invested by the investing person for him to stay away from the business (with a mutual deal)?