Credit on my credit cards?

I had money owing on several credit cards and one day one of my credit card company contacted me to see if I'd like to consolidate all my outstanding credit card debits onto one credit card and they'd also give me 10 months interest free. I went ahead then got bills for the other credit cards. Because I'd already made a payment to each card company it had reduced the amount, now i find that on this months statements I'm actually in credit! How do i go about getting that money back, i don't want to be buying goods to that amount because if they could refund me I'd happily pay that towards my outstanding debt (the total amounts to around �150+) Hope I'm making sense. Is it possible to do this?