Coupon Site: Loading...
I have no idea why the web page didn’t post. Does adding text make it a self-post?
Add to cart and go to checkout.
At the end of the check out which requires no credit card you get a zip file to download with the coupon code in a txt file.
You go to this site which is also typed in the txt file.
https://members.astrill.com/extend.php
You enter the coupon code in the “I have a coupon/reseller code” area.