Most of the time, traders that are selling the same things like food stuff and likes prefer to buy all things from them. Meanwhile, they may not have all the needed items. If they notice that you are buying from other shops, they will not be happy. First of all, prices may different from other traders. Second, the quality is another thing to consider.

However, our parents are sensitive. If they know that what happened was not your intention to do it. They will let go. Well done job, please continue with good job