shocking handling of booking

we made a booking at the Protea Hilton to attend the hilton festival. made in march. we confirmed everything with them various times., the last being 10am on 13sep. day before the festival. that evening i rcv an email- no phone call- to say sorry we cant accomodate you we have a plumbing problem and we are moving you to PMB>??? not acceptable. we needed to be close to the festival not an hour away? we then had to call around trying to find an alternative in a little town full to capacity because of the festival?? No apology was made , Our compensation was that next time we come they will give us free breakfast!!! ok stuff happens but the least they could have done was phone and explain instead of an email? and surely they new earlier in the day that they had a problem and why only our four rooms? me thinks someone else needed them so we were booted. I think the way it was handled was just so bad. will never go there again.