Primark sales surge as Greggs tie-up drives brand ‘excitement’. Greggs and Primark announced its partnership at the beginning of February, with the launch of a collaborative fashion line and the opening of Tasty by Greggs, a new cafe in Birmingham’s Primark branch said to be the “world’s most Instagrammable Greggs.” Response to the launch has been “strong”, with Primark reporting high levels of engagement across its social channels “driving excitement” around the brand, particularly among younger consumers.