Thank you cards in shipped products

Good morning everyone, I was wondering if i could slip a thank you card in my FBM products when i ship them. The thank you card:

• thanks the customer for buying the product
• has the name of the amazon shop on it (i do not own another shop with the same name offline nor online)
• asks the customer for a feedback to improve our service

There are no:

• personal info (mail, phone numbers, external links)

We don’t ask for a positive review, we ask for a feedback (positive or negative).

Do you think such a thank you card abides by amazon rules? If not, do you have any suggestions on what to change in it?