Totoodo.com — duplicate google pixel 3a xl given by totoodo and display not working

Address:

717, 38th Cross Rd, 4th T Block East, Pattabhirama Nagar, Jayanagar, Bengaluru, Karnataka 560041

I replaced the display of my google pixel 3a xl for rs 15800 from totoodo koramangala store on 29-july-2020. Initially they told me that i would be getting 1 year warranty for the new display. But they didn't give me the warranty in writing. Only 1 month totoodo warranty was provided in writing. The display stopped working the very next day. Since then i visited the koramangala (14 kms away from my house) store 4 times to fix this issue. Each time i visited they did something to fix it temporarily and it stopped working the very next time. I was so frustrated and i raised a complaint in their customer care. I didn't get any response from them. Then when i took my phone again to the koramangala store (This was my 5th visit to this store to fix this issue), they said they would send my phone to malleswaram store to fix it. I got the phone few days later and still had issues with the display. I had to visit this malleshwaram store (15 kms away from my house) 4 times and finally they said issue is with the sensors. They changed the sensors and promised me that they would return my money back if is not fixed. The display stopped working again even after replacing the sensors. I have been trying to contact them ever since and nobody is answering my calls. A lady named jyothi who is the support head in their head office in jayanagar was so rude to me. She said they never provide a warranty for displays and said she is not responsible for her other stores making false promises. She also added that they would never fix my phone again.
I took my phone to another service center and they confirmed that the issue with is the display itself.
The support head lady is now saying that she would never fix my phone not return back my money.
The totoodo service centers have cheated me with a duplicate display product and are not even ready to fix the issue.
I want my money back. I also need compensation for visiting their multiple stores these many times.

Invoice number: sb/jul/068
Attaching the invoice