A single case of a creepy...
... pizza delivery boy abusing the phone number of a client to stalk her. That is bad, but it happens all the time. Just because a intermediate (Just Eat) is involved doesn't make this case special.
Of course the phone number gets passed on to the local pizza shop, which in turn gives it to the driver for address clarification and such. And I bet that Just Eat has clauses in their contract with the pizza shops that prohibit the (ab)use of contact info for anything other than just the delivery.
Fire the delivery dude and report him. Case closed.
Biting the hand that feeds IT
