faulty cloud 9 flat irons

Last year June I my boyfriend purchased a cloud 9 for me as a gift. Not even a month after that it broke. I tried taking it back to the salon he bought it from but it was said to take it to the agent who sold it to them which we did. Then we were told cloud 9 is sold to Wella.It's been almost nine months and since then I have had 4 cloud nine irons which of the last one just broke a few minutes ago. A few weeks ago I was at Wella to ask for a refund and I was told they are aware of the faulty irons but its under investigation. I'm tired of getting a new one and it breaks every time. I just want my money back please so that I can get a decent flat iron that lasts longer than a month other than the cloud 9s I have received in the last 8 months.