We have been using verotel on some of our sites for around a year now - being in the EU - its great to be able to bill in Euros or GBP - no more crap converting USD rates. We are just in the process of adding them to our cascade so we can make verotel live on all our sites. They also seem to scrub a lot less harder than some others - and our cbacks are still holding at 0.02 on volume sales. Verotel are great
