Welche Bedeutung steckt hinter der hier vorgestellten Vokabel aus dem Bereich Nice to know?

Linda: 'I've just signed a new mobile phone contract - no connection fee, a free phone, no charges for three months, I can't believe it!' Maureen: 'You know there's no such thing as a free lunch. You ought to check the small print in your contract and make sure there are no hidden surprises.'

there's no such thing as a free lunch

Do you know what it means?

• the contract is fake
• you have made a very good choice
• all goods and services have to be paid for