Has Adventure Bookings up and left?

We received an Adventure Booking voucher with a few activities as a gift in June 2014.<br> <br> The voucher is valid for 3 years and expires in June 2016.<br> <br> I have been trying to get a hold of them since the 1 October 2015 but have not received a reply!<br> <br> I have tried calling but the line goes directly to voice mail and I have sent numerous emails enquiring about availability for these activities.<br> <br> This poor service is concerning due to the fact that this gift voucher cost a lot of money.<br> <br> I am worried the company has closed and has taken off with all of our money!<br> <br> If anyone knows what has happened or if they still exist, please comment of this revue.<br> <br> Thank you