If for some reason you decide to refuse the purchased product, you can do it in According to Law of the Russian Federation "On Protection of Consumer Rights" dated February 7, 1992 No. 2300-1.
A product of inadequate quality means a product that is unable to provide its functional quality due to a significant defect (with the presence of defects / defects).
The buyer to whom the goods of inadequate quality were sold, if this was not agreed by the seller, entitled to his choose to declare any of the following requirements:
In case of disagreement on the quality or reasons for the occurrence of deficiencies, online store entitled conduct an independent review at their own expense. The buyer can participate in the examination and challenge her decision in court. If, as a result of the examination, it is established that the defects of the goods arose due to the fault of the buyer, then buyer is obliged to reimburse the online store for the cost of the examination, as well as the costs associated with its implementation on the transportation and storage of goods.