Originally Posted by
tsastor
Just a warning to the OP, as his (her?) location indicates that he (she?) is based in the US. From my experience (as recent as this June) US-issued diners club cards do not work in SVO lounges. I was even shown a copy of lounges' contracts with Diners Club, which stated that cards with 16 digit long account numbers (as all MC are) were not accepted.