Requesting a refund for an unpurchased item
Hello. I would like a refund. I did not purchase this.
That appears to be a text. Double-check your account to see if it is legitimate. It may be a scam.
If you want to ask for a refund, start here:
Request a refund for apps or content that you bought from Apple - Apple Support
Note that Apple considers all sales final and that refunds are given on an exception basis. Just because you request one doesn't mean you'll get it.