I used a $50 free Adwords voucher about 4 months back when I signed up with ipowerweb for hosting. Well I've now signed up with them again for a new hosting plan and they gave me another voucher (for both Yahoo and Google). Can I use these vouchers or will my website get banned if they find out I used free vouchers again?
I think you'd be okay as these are vouchers from your host, not from some special offer you pulled off the web. If in doubt contact them.