Mail order buyers The database of Call4You is the unique list in Poland with real customer of mail order companies. The adresses are constantly verified and each day new mail order interested persons are generated by telemarketing campaigns. The list was constructed through ordermailings, questionnaires, coupons, and promotions. The persons included in it are active mail order buyers in Poland and respond positively to catalogue offers. They are interested in various good quality and reasonably[...]