Non-existent service resulting in lost voucher

Finally coming to Hello Peter because there has been no resolution to this two year old matter, despite several attempts to contact the customer service manager. In January 2014 I received a gift voucher for my birthday. I booked my appointment for April. The appointment was on a Monday, however, the Thursday before, I came down with flu and made various phone calls (no answer, I left several messages) and sent a number of emails for someone to contact me to move the appointment. Not a single one of my emails or messages were responded to. I continued to reach out to them over the weekend; no answer. Finally, on the Monday, I had a rude phone call asking why I hadn't arrived. I explained that I was ill and have been trying to contact them for a few days. I was then told that I had lost my voucher because of this. Despite several attempts to speak to the customer service manager over the past two years, nobody ever contacted me. Recently, my friend who gave me the voucher, asked me why I never used it. I finally told her the story. She told me the voucher status was \unclaimed\"! In my opinion, this is theft it has left a bitter taste."