Recently puzzled by blocking sending SMS on short number from your phone. The first is at the level of the operator. Search the site MegaFon gave the following result: "the service connection fee is 100 rubles, the monthly fee is 100 rubles a month." In General, the cost of services comparable to those SMS to short numbers. Only then do you pay the operator. The difference. Later, after searching through Yandex, and came across the website of a branch in another city. There was provided a similar service, only with the remark "free of charge". Tried in the region — have a text message "Service, the Ban of sending entertaining SMS connected". Checked the balance — unchanged.