Fraud w/ itunes

Continued charges after I have followed all recommendations from iTunes and iTunes.com/bill the number on my credit card statement for the charge is iTunes but it just gives an automated response saying go online. Also with all the charges - I have no purchase history on my Apple ID yet it says iTunes clearly on my statements! I’ve done everything besides cancel my card! Is there a number I can call to actually get this fixed so it stops and won’t happen again!!!