Vendor Registration

Hello Dokan Team,
I am creating a custom registration page with dokan and woo-commerce default form i know dokan already provided the same functionlity that different form for customer and seller but i need to display as tab wise first tab for customer and second vendor i am using short code for display default and vendor registration form in tab now my issue is i just hide the i am vendor button when i switch to tab and enter shop name the shop URL not filling automatically and also it’s not checking that it’s available or not so tell me how can i resolve this issue hope someone give me a quick solution for this as i am near to deadline..

The page I need help with: [log in to see the link]