I contact them through their website https://www.s7.ru/home/about/news/special-offer-of-s7-priority-for-topbonus-members Then using from contact form Contact Us section Got very fast and positive answer with following simple challenge : "We agree to status match you : fly once on S7 airlines (no codeshare or One World partner : directly the company) and get Gold" Useful only if you fly in Russia (not for One World only bridge)