«The card you entered cannot be used for this payment. Please enter a different debit or credit card number»

Outdated Questions
1

Ok Dmitry, I’ve been trying to buy your extension , but when I try to do the payment , I get this error “The card you entered cannot be used for this payment. Please enter a different debit or credit card number.” . I’ve been trying to do it with 2 CC , and got the same error on both.

2

You can pay the extension directly to my PayPal account admin@mage2.pro.
Set your name in the payment comments.

3

Just sent you the payment !

4

Yes, I have received it, thanks for purchasing.
You should have received 2 letters from my code repository.
An installation instruction is here: How to install a Mage2.PRO extension?
I can also install it myself for free if you provide me SSH and phpMyAdmin access.

5

Ok so I do this one
"0": {
“type”: “composer”,
“url”: “https://repo.magento.com/”
},
“1”: {
“type”: “composer”,
“url”: “https://mage2.pro”
}

I update my composer , and after what I need to do ?

6

You should open the installation instruction I have mentioned above, and accurately implement all the 9 steps in the exact order.