What might the payment page look like if the payment is not confirmed immediately?

Question

User interface

Let's say the user selected a product, went to the payment page, paid through something, for example, Yandex.money, immediately received a confirmation and everything is ready - "thanks for the purchase."
And if I also have the same payment options, when the payment cannot be confirmed immediately after it has left. For example, a bank transfer. or western union. Or we are temporarily checking payments manually. And the status "it came, everything is fine" is set in 1-3 days after payment.
How to make this page in terms of UX? The user switched to it, there are payment details.
Question: what are the best buttons to add there?
Of course, the "Pay now" button cannot be there. And redirects to the "thank-you" page too.
Then what, to make it look good, clear, understand?
Back to home button?
Or some other navigation elements?
Are there any good examples of such pages? Somehow I can't remember anywhere.

Answer 1

If there is no integration with the software, but only details, then you need additional links to instructions for common online banks and "Print a payment order" and indicate how to receive confirmation.
I like how this person does it (see end of post).
If there is integration, then I would like to be led through the process. For example, "Send payment" ... "Payment sent, we will contact you within a week. You can check the status of payment by this number" and duplicate it with a letter so that I do not remember the order number

Answer 2

Issue an invoice
and, accordingly, the status of the order