Poor service from Discovery and HP

<p>I purchased an HP printer through the Discovery Mall website. I requested a receipt for the purchase for tax reasons. I have provided a date of purchase; Order number; Customer ID and product description yet no one can help me. I have spoken to several people from Discovery and HP (Online and Shop) and everyone passes it off to the next person. It is now been a week and still no result. Please can this be sorted out. Thanks.</p>