GST surrender with dues

File all the returns and pay any dues like late fee and apply for cancellation.

Outstanding dues to be received by you from your dealers has no bearing on GST cancellation as it will be your problem to collect the dues. But if you not paid GST owing to the dues you have not received, then the liability is on you to file the returns.

Pls note that this is according to my knowledge. Lets wait for other experts to answer