After purchasing the phone, you can understand that the model did not suit you. This could be due to its appearance, specifications, or other factors. In this case, according to Russian law, you can return the goods to the store.
Find your purchase receipt. You can return the phone without it, but it will be proof of the reality and legitimacy of your claims. If you do not have a receipt, find a person who will be ready to confirm the fact of your purchase. Having such a witness will help you in case of a dispute, if the store does not want to admit that the product was purchased from them.
Take your receipt with you, as well as the original packaging of the goods and the phone itself. Come with these things to the store where the phone was purchased. Explain to the seller what you want. You have the right to demand both the payment of money in exchange for the product you do not like, and its replacement with another device with payment to you or the store of the difference in value. In this case, no more than fourteen days should pass from the date of purchase.
If the seller refuses to fulfill your desire, contact his management - the manager or director of the store. It is possible that they will be much more loyal to the customer than the junior staff.
If all employees of the store refuse to cooperate, contact the consumer protection service. There, lawyers can advise you and help you write a complaint to the controlling organizations.
Go to court if the problem cannot be solved otherwise. To do this, draw up a statement of claim, preferably with the help of a lawyer. Please note that litigation can be a lengthy and costly undertaking. Therefore, consider whether it is worth wasting time on this, even if your chances of winning are high.