Elegant Europia — harrising for payment

Hi I am getting a harrising call and sms,
They provided me home base work in The Pivots to fill forms. & whenever I have any quiry I call up their helpline [protected], which keeps saying invalid number & whenever I mail them, they say
[protected]@thepivots.info
"Dear concern,
If you have any call on helpline number."
Thank you,
.
And now they called me saying, if you want to complete the work you need to pay 5000₹ & if you want to discontinue then 7000₹.
.
Then they sms me this from unknown number
"Dear Concern,
Your case can be booked under Section 17 and Section 74 and 75. You need to pay penalty amount to the company and settle this dispute. Not settling the dispute. If you know and you need to stop legal proceeding
Kindly Call On [protected] For Future Details.

Dear Concern,
Last time intimation for clearing your outstanding dues or else company will proceed this matter legally.
Kindly Call On [protected] For Future Details.

This is so harrising for me.
Please help.