Purchased Items from Original Seller – denied invoice

I am fairly new to Amazon reselling and I ran into a wall I’m not really sure is circumventable but I thought I’d ask. I purchased ten units of a product directly from the original seller of this product. This is a very large well known toy company. It is a product I see other sellers on Amazon reselling so they were able to get ungated. The original seller site offers an “Order details” page but no invoice. I emailed the company requesting an invoice just to be on the safe side and was told flat out that they no longer give invoices and that they would just resend me my order details. Is there anything I can do from here? Could I just print the order details to PDF and try to use that? Doing my best here. I did look into whether or not this company provides invoices before buying and the answer I widely received was yes so is this a new policy maybe?