I did get a full refund but I was sorry it didn't live up to expectations.
I hope you find it useful and don't need to send it back.
I'm going to head down the CBT route I think.
Let us know how you get on. I found it very abrupt - lots of 'you must'- 'you should' and the voice was not soothing. Maybe being a bloke I would respond better to a female voice.
It waasn't for me but hope it is good for you.