May I ask how long your land was delay for? HBC is asking me for 8K for a 6 months delay, this is not reasonable for me.
We signed the PWC in June 16 originally for settlement in March 17, which was pushed to September, which was pushed to December, and finally now in Jan 18. So ours was 4 months passed for 8k, which I don't think is completely unreasonable, comes down to, compared to your 6 months passed I'm paying too much. Realistically speaking though, I expected prices to fluctuate a little at least, it may come down to what finishes have been chosen as to what makes a price difference? I'm not 100% sure.