didn’t order itunes don’t want it don’t know hoq to cancel to or get my money back can you help me please

Is this an e-mail you received? Has your credit card been charged? Are you sure the message is legitimate? Does it contain a link for you to sign in somewhere? It may be a scam.

Apple will always address you by your name or the name they have on file for you and the e-mail will be from @apple.com.

Avoid phishing emails, fake ‘virus‘ alerts, phony support calls, and other scams

Identifying legitimate emails from the iTunes Store

Send the e-mail to Apple as an attachment to a new e-mail before deleting it.

reportphishing@apple.com

If you credit card has been charged, you can report a Purchases problem.

Purchases problem

If necessary, contact iTunes Support. Scroll to the bottom of the page in the 2nd link.

iTunes Support

iTunes Support – world wide

iTunes is free and installed with macOS. If you buy something from the iTunes Store then you pay for it. If you have never opened an iTunes account then you didn't pay for anything so you won't get any money back.