proteavouchers.com WEBSITE DOWN AND UNABLE TO BOOK

I have a Protea Hotel voucher (NOT PROKARD) that I've been trying to use for days now but the website proteavouchers.com is down. I've tried calling reservations and sending emails but I just get passed from one department to another and no-one actually knows what is going on. I'm really annoyed now - what kind of circus is Protea hotels running that no-one can tell me how to use my voucher? Can I be refunded then since I have no way of booking?!