Sky Problem need help please

Tariq2009

Hi guys need urgent help I have introduced a friend to sky in November 2007 and received email from them to confirm my free sky+ and i did that ,I heard on Watchdog people been waiting for more than a year for there sky+ and £50 vouchers and no hope for them .So i went cancelled the direct debit with one month payment on hold and contacted them and told them they will get the payment when they send me my Sky+ box .But they send me to collection department and last week I called them upon receiving there letter for £17 standing balance i called them and ask them to deliver my sky and get the payment ,they said it is not in there hand but they will ask sky but now i received letter again on Friday saying that they can confirm the payment is required .That means that sky is not interested in sending me my sky+ box but they want there money to be collected by collection company .Any HELLLLLLLLLLLLLLLLLLLLLLLLP what to do should I keep refusing to pay thanks