Hi you can use simple lighter fluid to remove the adhesive and marks;-) Please let me know how that goes. Also there are products such as Goof Off, its best to ask a local hardware store what they carry for this that wont harm the finish;-)
Thank you Tech Michael
Thanks for providing an answer but we wont be using anything like chemical stuff as we arent sure if it will eat into the surface of the doors! If we do this and it makes a permanent mark then the guarantee is invalid. I think we'll have to get the potpint person our to do it themselves so we are covered .