I am afraid I don't konw anything at all about getting a Visa, but I can confirm that Canvas Holidays are always looking for couples to be campsite couriers. My partner and I were couriers a couple of years ago and throughly enjoyed ourselves. In fact on our initial training weekend we met at least three other couples and they said they were trying to recruit more. We are a mature couple so they placed us on a small campsite by ourselves (with the occasional visit by our supervisor), but I am sure they would accept couples on the larger sites. It really boils down to how good your english is and how hard you are willing to work.

Its hard work, but great fun, I can highly recommend working for Canvas. I am sure if you contacted them they would be able to help you sort out the visa problem. They are always on the look out for staff, so don't be shy, give them a call.