Sara Cox has revealed that her vow renewal with husband Ben Cyzer at Camp Bestival was "a joke thing" after being congratulated by fans online.The 47 year old broadcaster shared an image of herself in a wedding dress at the festival in August while Ben stood beside her in a leopard print suit. But the BBC Radio 2 presenter has now admitted all was not as it seems in an exclusive interview with OK! She said: "I feel like I need to explain this, I don't think I made it very clear in that post. It's just a joke thing that you do at Camp Bestival.