EIGHT MONTHS NO DELIVERY / REFUND

I am extremely devastated and exhausted of call Home Choice regarding a refund. They failed to deliver the goods after payment was made. We made payment on the 28th June 2017 and waited for the delivery for over 6 months. I have been calling and requesting for the refund and nothing has been done. I really don't know what to do NOW. I think it is time i take this to the Credit Ombudsman because i am not winning.