One of the iconic places of pilgrimage for all those who enter Kazakhstan from the Samara region. I read about this store before I left. The most important advice: do not buy or change anything until you get to Dina, most likely you will be deceived. Even a simple sausage in the dough costs about 1.5-2 times more expensive in the store. About currency exchange and the purchase of a SIM card, I'm generally silent in Dean. A SIM card costs 100 rubles. and right behind the border outpost, enterprising Kazakhs will sell it to you for 450 at a discount. Be patient in airplane mode, it takes 15 minutes to get to this store from the border.