There is no need to keep emailing them. SU and S7 both had status match campaigns last year after Transaero (UN) has shut. For SU you had to fly 5 sectors in flexible economy and for S7 1x sector in any class before they matched your status. UT had something simmilar whereby they would award you their Bronze tier (+10% miles;longer period of miles validty;+1PCS) if you flew their new route from DME to NUX.

None of them match at the moment directly or indirectly!