To get a complete, exhaustive response from the provider, you need to compose the message correctly.
The subject of the message should be brief, but capacious, disclosure of the essence of your appeal: ordering products, obtaining price lists, specifying details, etc.
The body of the letter should detail and clearly display the list of questions, the answers to which you want to receive. The more fully you explain to the supplier what you want to know about the product or service, the more likely it is to receive exhaustive answers to your questions.
The correctness and completeness of the contact data indicated in the form will enable you to receive a response to the request quickly and in full.