Valid & Invalid transactions

Q: In some businesses it is common practice to special order an item for a customer, when it is not in stock, by taking a non-refundable deposit, e.g., 25% or 50%. At times the following situations arise after the item is purchased from the supplier and it arrives: 

1. The customer pays the balance and the sale is concluded. 

2. The customer changes their mind and then wants a refund, which is refused because the item was specially ordered. 

Is it permissible to conduct business in this manner?

Q: I have seen previous questions, about whether purchasing extended warranties which are a separate line item at the time of purchasing a product, are haraam. 

Please advise if it is permissible to sell the same item, at different price points but the higher price point has a longer warranty? The warranty is not a separate line item.

Q: Some stores mark products at a certain price but round off the amount. For example, the item is marked at R12.99 or R12.95, but they then round off the amount and sell the product at R13. There's no question of change. Is this permissible?

Q: I purchased a 50 hectare farm which is not fenced off. I did not know that there are some animals on the farm. Am I the owner of those animals?

Q: It is right to sell an item higher than it's retail price which is mentioned on the product box?

Q: 

1. If a customer was to order something that the business didn't own (it wasn't in stock) and rather than paying full price on it, they agreed to put a deposit down and pay full price after the product was delivered to their house and it was fitted into their house (fitting is a separate service and a customer can order a product and request fitting it into their house or they can order a product with the fitting service together). 

Would the income be halal for this? The product will be delivered to the shop first and then the business will send the product to the customers house and fit it. 

2. If you tell a customer that the product isn't in stock and they have to order it in and if they do, they don’t have to pay full price, rather just a deposit and then when the product is delivered to their house or ready to collect from the businesses store, they can pay full price after that, is the income halal?

Q: I bought airtime and put it in my phone. I used the airtime to buy a bundle of data. I never notice my airtime was fifty cents less. They charged me an emergency recharge. They gave me R2 and said from my next airtime they will take R2+R1.10 access fee. What must I do at that time? When agreeing, I never know it was interest but after that I sensed it. Please advise.

Q: I have a start up that will sell products online in the U.S. I have made small 3d printed stars for use as fridge magnets, but they also can be hanged as a decoration. It is Christmas time in the U.S. and a lot of decoration sales are made during this time. 

I have not made a product specifically for Christmas, but my product may be used as a decoration on x-mass trees. I can make a product listing on my online store and add "tags" that help customers find my product. Is it okay for me to add a "christmas" tag to my product, so that it appears easily in searches and attracts sales?

Q: I am selling physical products on an online website. I had one product in stock, but got two orders for that product. Now, I have two options: 

1. Manufacture the extra product to fulfill both my customers orders. 

2. Buy the extra product from elsewhere and then get it shipped to my customer. 

Are these options halaal? I know that dropshipping is not allowed Islamically as the seller does not own the product at the time of the sale, that is why I want clarification.