Hello Vipul Garg,
Thank you for choosing XStore as your WooCommerce WordPress theme. We have checked your site and found no issues; the request quote option is displaying correctly. https://www.veed.io/view/d349f434-a986-4d71-bee2-b7833c934024?sharingWidget=true&panel=share
To help you better understand how to enable and use the Request a Quote button, we have recorded a video for your reference. Additionally, you can find instructions in our theme documentation here: https://xstore.helpscoutdocs.com/article/135-request-a-quote.
We hope this information is helpful.
Best Regards,
8Theme’s Team