GST cancellation & New application

Hello friends i have an ecommerce site where i am selling various articles hence i obtained gst recently but i applied for gst as tax collector (ecommerce business) and it got approved and i was allotted gst but afterwards i came to know that i had to apply gst as regular taxpayer not tax collector , on gst portal the option to surrender the gst is not available to me , i have applied for gst as regular tax payer now , pls suggest how to get the previous gst cancelled ? Also will i get gst as regular tax payer when i already have a gst for same business as tax collector ?