DATESNOW PTY LTD ripoff unauthorized charges to my credit card Internet

I was browsing through the internet for a dating service. I made an inquiry to "Date Now" and terminated my search when I saw what they were charging for overseas calls.
Apparently, every time I tried to cancel the service, I was charged as follows: 12/21/04 $19.98 and 29.98
01/08/04 $ 1.97 and 29.98
01/21/04 $19.99
01/24/04 $19.98
02/07/04 $79.99

The latter charge could not have been initiated by myself because I was out of town for several days and did not use my computer or make any calls. The other charges were my attempts to contact this ripoff company to get them to drop me from their mailing list. Each time I tried to make contact, there was no response which to me represented no telephone charge for a no answer.

Robert
Salinas, California
U.S.A.