From 02 chat: 'You have 14 days from the day after delivery to change your mind and return the device or cancel the whole deal. You equally have 14 days to change your mind about the credit agreement and choose a different way to pay. This is all explained in the Key Info and pre-contract information youll see when you checkout online'
Essentially you have 14 days with it, if it's too big change it.
Essentially you have 14 days with it, if it's too big change it.