Poor service received

I bought a Sealy base set beginning of January 2016 which was never delivered to date. I then reported them to Consumer in December 2017. They then engaged me as there were supposed to refund me. every time I follow up about my refund they say their system is offline. I went to buy another bed for my Guests out of my pocket (unnecessary spending). The service is really pathetic. I don't know what do I need to do to get my money from them.