By Tom Beattie & Tom Beattie David Beckham cheekily teased his wife Victoria following a posh dinner at the Ritz in London, referencing claims she made in their recent Netflix series that she had a humble upbringing. The fashion designer and former pop star had claimed she came from a modest background, much to David’s amusement who looked perplexed by the notion. Victoria, also known as ‘Posh Spice’, is actually the daughter of an electronics wholesale tycoon and was often driven to school in a Rolls Royce by her dad. Her claims of a ‘working class’ upbringing left David chuckling on their Ne…