Eating seven ajwa in the morning

Q: I would like to act on the hadith on eating 7 'Ajwah dates in the morning for protection against magic and poison. Different qualities of Ajwah are however sold, the best quality being more than twice the price of the lowest quality (which are thin and dry). Would seven dates of any quality give the protection mentioned in the hadith? Or would I have to eat more than 7 of a cheap quality?

Reselling an item at a higher price

Q: My husband is working in a private Afghan company that stores oil for America. Sometimes the Americans ask my husband for some goods like paint, furniture or other things. My husband asks the price from the shopkeeper and buys the goods then gives the goods with an increased price to the Americans.

For example, the furniture price is 300 dollars and my husband gives the price as 500 dollars, even the Americans know the real price but they accept the price that my husband gives.

I told my husband that this money is haram but he says that I am not their employee, I work for another company. They ask me to buy goods for them and I give them a quotation then they buy it. This is business. I don't directly tell them that I increased the price but they know. They accept it because they trust me and they need one person to do their work for them since they can't directly buy those things. I spend my time and effort for them in getting those things so the money is not haram. Kindly tell me whether the money my husband charges them is haram or halal.