Web2tech Solution — Charging extra for services. Deny to pay. Not refund the money

Hedayatullah fromthe company The Hedayat. West Bengal 700154

Web 2 tech solution pvt Ltd. Offer me seo services of 15000 packages.
1. Web redesign in php
2. Free SSL certificate
3. Language converter
4. Seo promotional 15 keywords
5. All these would be 3yrs package

I paid the amount they send me proforma invoice. Which attached below.

But starting my work they ask me you have to server hosting charges which is mandatory, and its cost you ₹18000 extra. And ₹ 6000 for SSL certificate.

I deny to pay and ask to refund they said not refundable h. And we cannot start your work until you pay me ₹18000/-extra.

This type of cheating company need complaints that never do to others.
I want my refund ₹15000/- back.

Kindly help me out.

Thank you
Regards
HEDAYATULLAH