What would you do if you pass a ringing phone? Mall Plovdiv in Bulgaria tested this. Through a ringing red phone they tried to provoke its visitors with surprising promotion. Those who dared to pick it up were surprised by an offer – you have 15 minutes to choose something from the mall shops for 50 leva and we shall pay for it. The promotion created a real fuss and people started to wait for the phone to ring. But nobody knew when this will happen…
