Sorry to hear that you are facing issues with Adobe Stock services.
I checked your account details and noticed that you tried to purchase Adobe Stock- pack of 5 credits from the website and there was a deduction of 47.94 EUR. But, due to some reason the charge hasn't been processed yet(the payment status is in a pending state), and hence you aren't able print the invoice for the same. Kindly wait for few hours for the payment to be processed, if the issues continues, feel free to reach out to us.
Please check your email inbox, you may need to check your junk folder. An order confirmation message was sent to you when you placed your order. I suppose you are looking in Account Management for the invoice? Can you provide a screenshot of the order history? We may need to report your issue.