In the UK, cosmetics firm Avon told customers earlier this year they would get a free pre-pay mobile phone if they spent £15 or more on skincare products.
Problem is that 750,000 customers jumped on the offer – more than 10 times the number of phones Avon had to give away.

The offer was contained in a brochure, which explained that customers would receive a voucher they could redeem in any Orange shop. And only those who read the small print would have discovered a line stating that the offer was “subject to availability”.

Dozens of customers complained to the Advertising Standards Authority after it became clear they would not be getting mobile phones.

The watchdog also criticised Avon for not telling customers in its letter of apology that they could cancel their order if they wished.

From The Guardian.