Pizza Hut India — payment taken but no delivery

Address: Thane, Maharashtra, 400604

Date of the incident:-15/8/2018
I have done online order on website.I ordered pizza on 15 august 2018 5.45pm but didnt get it, but i got message at 9.35pm and email from pizza at 9.35pm that my order is cancelled i.e after 3+hours.(till that no communication from pizza with TAT time)
After calling customer care they said reason of technical issue for not delivering .But they accepted my payment.
They also initiated process for refund but after 5 working days still no refund.
1)No proper communication from pizza hut of cancellation.
2)No proper timeline for refund.
3)No refund yet.
4)No one for help!!!