Hi Mully79, we have just started advertising in one of these type of mags and the only way we found the number is by actually getting hold of one which had been put through the door of a friend who lived in the area. If this is not possible for you to get hold of one this way, I would suggest asking some local shops who may advertise in the mag. Even if they don't advertise, I would imagine they should have received one as the distributor will hope that they will look through it and be interested enough to go in it. If you manage to get hold of one of these, I would suggest putting in a good customer offer with a voucher, is the best way to drum up trade, rather than just advertising the fact that the business exists. Also if you put in a voucher type offer, you can gauge the success of the advert by the number of voucher redemptions you may or may not get.
Best of luck.