How do I make payment with Paypal?

How do I make payment with paypal?
1. Select your plan (30 days, 90 days or more) -> Add to Cart.
2. Go to shopping cart page -> Fill your Email Delivery.
3. Processed to Checkout
After checkout , please check your E-mail and get Paypal Instruction 
 Click the blue button below to complete your Order.

-> Delivery: You will receive your item IMMEDIATELY.

How to get email Paypal Instruction :

1. How to use coupon code?
2. How to update quantity product ?