Is there an option for add-on protective filling for items I want amazon to prep after I sent them to fulfilment centers?

The units were sent to Amazon FBA a while back and a majority of the sales reported damage to the bowls and plates. Since the items do not have a single scannable barcode (GCID, UPC, EAN, JAN or ISBN) that corresponds to an ASIN in Amazon’s catalogue, we are not eligible to choose the 'Prep by Amazon' option when sending shipments to Amazon.

We labelled the outer cardboard boxes as heavy and fragile, and since we have to prep our shipments to amazon, we used bubble wrap for the inbound shipments to Amazon.

I'm not sure how Amazon or FBA centres store our units, or do they take them out of the inbound boxes when they arrive, and repackage them when sales happen. Now that a lot of our sales have been reported as damaged, we are concerned on how to ensure these items arrive to the customer safely.

Are there any option for me to request to pay Amazon to add protection to the shipments please?