qspay>store registration >gst no

Actual Result:- the gst no field is not showing the red line message as "GST no is Required"
Expected result:- the gst no field should show the red line message as "GST no is Required"

Start at the qspay store registration form and reproduce the GST no validation case. Locate the GST no field and its existing validation behavior; done means submitting without a GST number shows the red message "GST no is Required".

Written by the indexing model from the issue text.