travelocity Saving Ace internet billing scam omaha, Nebraska

I do not check my credit card statment much at all. Today I did and learned that there was a bill from Savingsace.com for $19.95 I called them to find out what it was and they told me that I signed up through Travelocity.com from back in March. I did not sign up for any such thing and asked for proof that they have yet to provide. I was billed for about $140.00 and the credit card company does not seem to think they will be able to reverse any of these changes. I use to use Travelocity but never again. I will also check my statments monthly for such small charges.