Uber India — Uber Ride Refund

On 4th of September 22 I booked an uber ride for my mother who is a senior citizen to Uttarpara from behala. Upon reaching the destination even though the driver completed the ride but the fare that she was suppose to pay was not reflecting neither in the driver's phone nor in mine, neither I received a trip receipt in the email while waiting. My mother waited in the car for more than 15 mins then the driver suggested she pay him the estimated amount that was shown to when she boarded the cab. We paid Rs 715 in cash to the driver.
I had an uber cash refund of Rs 442 which was supposed to be adjusted in this trip and only the balance was supposed to be paid. So technicaly I was suppose to pay around 273 only for this trip but ended up paying 715 in cash to the driver.
This was done as the driver was getting impatient and also my mother was waiting for long so we decided to pay the driver the cash amount as he was demanding. This was purely done to avoid any further harrasment and the driver also suggested we can raise it with Uber later. There was no way we could contact uber during that waiting time, the driver mentioned he can also not connect with uber.
Later after de-boarding the cab and when the driver left I received the email of the trip receipt. Where i saw my uber cash was adjusted in this trip.
So i then and there raised the issue to the uber customer care where even I requested for a call back so that the issue can be resolved.
However continuously from the uber support team I was told that cannot be arranged. After repeated complaints they refunded me Rs 150 only with an email i was suppose to as per display and also in non cash method. IN THIS TRIP I HAVE BEEN CHARGED RS 1157 ( 715 PAID IN CASH ALSO MY UBER BALANCE OF 442 WAS DEDUCTED) AND ONLY A REFUND OF 150 WAS DONE.
THIS IS HIGHLY UNETHICAL WAY O[censored]BER charging money. I NEED THE ENTIRE 442 THAT WAS DEBITED FROM MY UBER CASH RETURNED AS 715 WAS ALREADY PAID TO DRIVER IN cash for this trip.
Also there is the additional harrassment of my mother waiting unnecessarly for 15-20 mins after reaching location and I faced dealing with the CS o[censored]ber. PLEASE DONOT EXPECT A SENIOR CITIZEN TO BE TECH SAVVY and pay via electronic medium.