Hello and welcome to Say no to 0870!
I have moved your post to the Geographical Requests section.
I believe that the number you are looking for is listed in our database. Go to the
search page and enter 'comet' into the company search field. To locate the Romford entry, either scroll down until you find it (it's a long list), or use the 'Find' facility in your browser. To do this (I am assuming you are using Internet Explorer), Select Edit menu, then Find on this page and search for 01708 (or you will find it by searching for 'Romford').