A new law on tipping was meant to make things fairer for hospitality staff. Instead, it’s ushered in a wave of confusing new charges – and diners are footing the bill, writes Hannah Twiggs Y ou order two mains, a bottle of wine and finish with dessert at a central London restaurant. The food is excellent, the service smooth – then comes the bill . Below the total, you spot something unexpected: a 12.5 per cent “admin charge”. It’s not labelled as a tip, nor as a service charge. You assume it’s