Liberty Shoes — Not providing bill receipts

Hi Team,

Liberty outlet next to Pankat Takies Chhindwara 480001, near dominoz is not providing receipts of purchase.
when asking he shop keeper is just taking mobile numbers and saying we will watsapp you the bill or send via sms but none provided. As receipt is not generating

Looks like they are doing tax frauds and cheating us by not providing bill copy if we need it in future.

Also, I am suspecting genuine ness of item sold.