It should take into account the time during the season. For example, the warranty period of winter boots begins on the first day of winter after purchase. That is, if you bought them in July, the guarantee will apply only to the season, which is intended for shoes. Also, due to the difference in climatic conditions officially winter comes in the Russian regions at different times. It can start with the first of December (according to calendar) with the first, or even earlier in November, such as the Arctic region.
If you have the right to return the shoes, go to the store where you bought it. Bring a check and packaging if it has been preserved. This will be your proof of purchase in a particular outlet.
Contact your dealer and tell them you want to return the shoes of inadequate quality. By law, you can choose the form of compensation - or a similar model without defects, or the purchase price. In this shop you can not impose your own version. If difficulties have arisen in the form to return to the checkout and get your payment.
In the case where the seller does not recognize your right, please contact the Directorate store. Probably that will guide you towards faster than line personnel.
In case of refusal to fulfill your requirements from the management, contact the CPS or the local Society for the Protection of Consumer Rights. There you can file a complaint, in the absence of reaction sellers - and apply them to court. But at the same time keep in mind that you will have to pay for the examination for compliance with the quality standards. However, the costs can be recovered in case you satisfy the request.