Various masaail of Business and Dealings

Q: I just wanted to ask I have Islamic banking with FNB and earn ebucks when I swipe, would it be permissible to use the ebucks earned?

Q: Recently one of my colleague asked me if I have TV package, which I have, she said, she is about to join sky but If I refer her then I will get 125£ and she will get 125£ too. I have done this so I'm not sure if that money would be halal or not since I don't know what type of benefit will she get from TV as I don't want to become a chain of any kind of sin. What would you suggest? Shall I return that money to her or shall I just give it to someone in charity?

Q: We have a company and an employee went on vacation. Upon his Return, before coming back to the office, he met another employee who told Him that he has been fired. This was incorrect information and hence the Employee (who returned from vacation) didn't show up to the office yet. We are investigating this further to validate if the second employee did or did not pass on the false message of being fired. If this turns out to be true, what should be our action on it?

Q: A person gave me money in order to purchase some items for him from an online store. This online store has a 'Loyalty Programme' where one receives 'reward/loyalty' points in proportion to a fixed percentage of the total purchase price. I have now received these 'reward/loyalty points' in direct lieu of the purchase I made using his money. The 'reward/loyalty points' for this purchase amount to R450. These points are not exchangeable for cash. Furthermore, I only received these points after making payment; I could not use these points to receive a discount on his purchase. Since I used his money, am I entitled to these points? Or must I give him R450 in cash (as one cannot send/transfer points)?

Q: What is the Islamic ruling on Black Friday? People worldwide consider it as a shopping day. Can Muslims partake in any promotion that is targeted or attached to this day?

Q: Is it haram to work throughout the night till early morning?

Q: I want to know that is the profit made through halaal business that was initially started by haraam money is halaal or haraam to use. Example: If I use haraam money and start a halaal business and I earn some profits from that business so that profit is halaal or haraam? Please let me know the Islamic rulings about this issue.

Q: A man buys something whether it is clothes or mobile phone or anything. Will he have to bargain for the thing he's buying or not ? If a person is rich and he doesn't matter about price he just buys the thing as it rates will it be okay according to Sharia?

Q: We have customers who buy on credit. Is it permissible for us to tell them that we will give them a discount if they pay before the due date? For example, the customer purchases goods worth R100 000 on a three month credit basis. The customer is told, “If you pay within one month, you will receive a 10% discount”. Is this permissible? 

Q: I am creating / developing my ecommerce store (on wordpress) selling various products online. It requires some Plugins / Extensions to be installed which are PAID. I am enrolled in a course (on Udemy) where my tutor gave me all those (required) plugins for FREE to use them on my own ecommerce site.

P.S: I don't know whether my tutor owns them or he grabbed them from somewhere else. I did sent him an email asking that but haven't heard from him. If I use those plugins on my site, and the income which will be generated from my store will be Halal or Haram? Can you please guide me on this?