Re-Payment Using Reward Points & Confirm Order After Payment

Hi Guys,
I have worked on nopcommerce 3.9 version.
So my questions are (On development):
1. How can i do confirm order or insert order after payment only??
2. How can i do re-payment using reward point??

Any one is here to assist in this quetions???

RahulNasit wrote:

1. The order will be created when the customer begins adding items to their shopping cart, but each order has a "status"...
Pending = not yet paid
Processing = paid, but not yet shipped
Complete = shipped and delivered
Canceled

Also, each order has its own payment status:
Pending = not yet paid (manual payments, purchase orders, or Paypal in some cases)
Paid
Refunded


2. Re-payment using reward points...hmmm...not sure what you mean.
You can enable Reward Points system and define the monetary value of the points, the exchange rate, and the minimum number that can be used towards a purchase.
Customers who have accumulated enough reward points to spend will see an option during checkout to "spend their reward points"

[Customers who have accumulated enough reward points to spend will see an option during checkout to "spend their reward points"]

Exactly it does.
But I want it same on re try payment when my payment not successful on paypal or payumoney of my order.