I went to this salon several times over the past 2-3 years to replace old Sim cards with nano (I have several corporate numbers). And every time I faced a problem - only old employees know that I can change my SIM card using my passport. I was lucky 2 times, the third time the old employee was not there. I was denied service. I had to go to another salon. Fortunately, an experienced employee was found there. I do not know how other issues are resolved there, but I do not recommend changing corporate SIM cards in this salon