Hi, while booking some 2 for 1 flights thru my virgin flyer card the other day as I was about to hang up the operator said as I have been a loyal customer they would like to offer me an upgrade to the high flyer card for the same annual fee as the flyer($129 instead of $289), ok, why not, earn more points some other potential benefits as well. Then because I wasn't transferring a balance from another card instead they said we can cut you a cheque for upto 80% of my limit for me to do what I want with 6 months interest free. There doesn't seem to be any catches or fees, besides paying it back in time. I think they offered me $15,000. I figure, take it, put it on my mortgage for 5 and a half months and give it back. Seems too easy? Anyone done this before??