Wynne and Katya scored 34 for their Tango, which was set to Abba’s Money Money Money.
Judge Anton Du Beke, awarding the couple eight points, described the routine as “tremendous” and “one of your best performances”, while Craig Revel Horwood, who also gave a score of eight, said: “Your bum was sticking up – but I loved, loved, loved it. Winner, winner, winner.” He added: “The espressos kicked in I see.”
The pair received scores of nine from judges Shirley Ballas and Motsi Mabuse, making it their highest scoring dance so far.
Week four saw Tasha Ghouri and Aljaž Charleston expand their lead at the top of the leaderboard with the first 10s of the series.
The BBC has been approached for comment.