Possible deception!
In the company's office at 14 Kirovogradskaya St. (South metro station), employees use a very cunning trick: first they offer a tour that suits you in all respects. And the hotel, and the type of food and the price ... Then they offer “exactly the same” but for other close dates (when it suits you) and, lo and behold, its price is somehow higher (the office manager shrugs, I don’t know the price, we don’t install), and then it turns out that the conditions there are much worse! But it's too late to change anything.