I too used Intellius for an email search, was charged the $1.95 to my cc as agreed. When I was looking at my statement on line, I noticed a charge for $19.95 from Intellius.
I called them and told them I had not agreed tot his, and I remembered I unchecked the box in the lower left part of there page. The gentleman I got was very nice, said the charge would be removed and he gave me a reference number if I had to call back, which I did not. In two days, my cc had been credited. I consider myself lucky, I guess if you catch it quickly, you can get it fixed easier.
The number I called was 1-877-974-1563. I hope you all have the same success I did.
Remember, look at your statement on line weekly to check for fraudulent charges.