Purchased a license logged in wrong account

Hi, we are a web agency and we have purchased a license when we were logged in the account of one of our customers. Our customer has received the corresponding invoices, although the payment has been done correctly with one of our cards. So, the question is: what we have to do to modify the invoice? We would need to modify details and invoice has to be addressed to us not to our customer.
Thanks in advance. Waiting for your comments.

I think you may need to contact Envato support

Thanks. Do you know where I can find this contact? I can’t see it in any place of their website…

You can contact them here: Envato Market Help and Support