LazyPay — asking me to pay approx 1200 rupees

I am not sure what is LAZY pay and how they got my number ... continuously asking me to pay some amount ..I am not sure about the background not that. ..URGENT ATTENTION
[protected]
Dear Customer - Your Lazypay account has been delinquent for over 11 days now. As per our agreed T&C's, our legal team may serve a demand notice to you. Please clear your outstanding amount of Rs. 1288.82 immediately to avoid further escalation. Pay now using https://pmny.in/4IjUXDdnMOTg Plz ignore if already paid.. this is message...