Pathetic Service

I had been given a voucher for 1 nights stay at Protea hotel Fire & Ice, i have been trying for 4 months to make a reservation, i tried calling the number on the website, but head office cant help me, i called Fire & Ice, i scanned the voucher and emailed it to their reservations department, i called yesterday, their systems were down, i called today again, there is still nothing they can do, the voucher expires on the 28 of February. i dont know how you booking systems work, if i choose a date if says its not available but if i go through the normal booking there are rooms available. Head office says Fire & Ice is responsible for the problem, Fire & Ice says head office needs to sort it out.

I dont know what to do anymore.