Vistara — Long connecting time

Hello and thank you for your time,

When I booked my whole trip with QATAR AIRWAYS under PNR TWMIA9, ATHENS-MUMBAI-GOA-MUMBAI-ATHENS I chose VISTARA UK862 for the flight GOA- MUMBAI on March 4, then I had 4-5 hours to catch QATAR AIRWAYS from MUMBAI-DOHA. Then VISTARA put me on a much earlier flight UK 842, so finally I had 13, 5 hours connecting time!!!
As far as I know, for intercontinental flights when connecting time is more than 6 hours, companies book and pay a hotel for passengers.
I never got this offer. Therefore I had to pay NIRANTA HOTEL and one meal, total cost 110 euros. Plus that I found out that my initial flight UK862 was on, never cancelled...!!

I would appreciate a refund of this amount or any other offer...

Thank you for your understanding and your time.

Regards

ALEXANDROS KOUSKOLEKAS