some different issue with Shdowfax...
Shadowfax guy2 times, in 15 days, ask OTP to reschedule parcel delivery as he had heavy number of parcels and I gave him OTP (as OTP too arrive with details that it will be use for Re-schedule), but as soon as OTP share for Re-schedule, I got auto message that parcel return back as no one available at address to accept delivery.... for 3rd time too they did same but this time I didn't heed any attention to plead of delivery guy for re-schedule delivery and refuse to share OTP and within 24 hrs. got parcel delivered at my address.