The first and foremost thing you need to do is to get acquainted with your rights as a consumer, because only then will you be able to tell if you’re being tricked or treated unethically. If you find yourself in such a predicament where a seller or a merchant is violating your consumer rights, you have the freedom to file a complaint regarding the same and get reimbursed for it. Taking some kind of legal action will help ensure that something like this doesn’t happen again.