So I'm using the append to file function (always using: to end), and on the first run it saves all the urls ok. But after that, instead of appending the urls at the end (on a new line), it just adds it to the last url. Example:
http://www.ebay.co.uk/itm/PERSONALISED-CUTE-SLEEPING-PIGS-FUNNY-PHOTO-BIRTHDAY-OTHER-CARD-/371658720542?hash=item568896051e:g:ppoAAOSwv0tVNAnDhttp://www.ebay.co.uk/itm/PERSONALISED-CUTE-SLEEPING-PIGS-FUNNY-PHOTO-BIRTHDAY-OTHER-CARD-/371658720542?hash=item568896051e:g:ppoAAOSwv0tVNAnD
http://www.ebay.co.uk/itm/PEPPA-PIG-MDF-SLING-BOOKCASE-NEW-BEDROOM-FURNITURE-OFFICIA