Woops, typos happen! Not a problem. Depending on the type of tld you purchased (.com, .net, .xyz, etc) it should be refundable per our refund policy: https://www.godaddy.com/agreements/showdoc.aspx?pageid=19963&prog_id=PROG_ID
You'll need to contact our 24/7 support by phone or chat to have a representative review and get you refunded.
Hope this helps!