Mobile number, “Carefully enter please”, 

post code “Carefully enter half of full postcode”

“Mechanical or electrical issue”, change the heading to “Mechanical,  electrical or body work issue? In place holder write plz “Message to the buyer / Additional information”

Also the blue box should be extendable, below right hand side, had doted 3 lines, so we can drag it bigger, please note it can take upto 500 words. And should be able to press enter etc. for demo just visit carbaba.co.uk etc, and see how that box is.
Mobile number, “Carefully enter please”, 

post code “Carefully enter half of f