Norton online security

I have mistakenly purchased on line security for a second time in two months.How do I obtain a refund as soon as possible of my £39.99 purchase price.Whenever I attempt to contact Norton via refunds or feedback,I get a constant revolving circle,which tells me I have to wait.I may die in the next ten years.If so, based upon the speed of return of contact,I will be out of pocket.