Quick Heal Technologies Pvt Ltd — android mobile antivirus, unable to verify my identity

Quick heal total security latest version for android - 1
Date of purchase: feb 17, 2020

I had purchased an antivirus on amazon. I was delivered a product key and it was working fine till i changed my mobile handset.

Now quick heal is unable to check my identity and asking for all the following details:

1. Purchase invoice of old and new handset
2. Quick heal purchase invoice
3. Confirmation - (Please write the reason of changing device and using quick heal on another).
4. New device product key?

They are unable to verify my identity with the following and are in the security business

They are unable to identify mw with
1. Registered mobile number
2. Invoice details of purchase
3. Product key supplied by them
4. Registered email id

So now i'm responding to dozens of mails where they keep refusing to enable the antivirus.

For rs 129 - better to get a refund and go with another antivirus rather than spending time and effort - useless customer service