Charged 100% after cancellation

I made some hotel reservations for Australia on [URL Removed] but cancelled them all. One cancellation apparently did not go through, so upon realising this, I cancelled it again before the date of the booking, but I was then charged the 100% R3500 charge.<br> I tried to reason with customer services and explain that all reservations were cancelled but this one failed but they didn't care and simply said that because the 2nd cancellation was within 14 days they will charge 100%. I contacted them again to explain that the original cancellation was long before but did not go through on thier site, but have had no response.<br> I used to use [URL Removed] for all my hotels but unless they reverse this I will never use them again and will tell everyone I can not to use them either. I have already booked at least 5 other stays on another site now.