Tiles continue to make me cranky

Just as we thought our issues were over with the tiles we receive the invoice from Amber. We were told we would be called on Monday if there was excess on the tiles. No phone call. Thursday afternoon we get sent an invoice after the tiles are already on site. The invoice is for just shy of $900. We had compared the costs of tiles between the ones selected at Amber and the ones selected at Beaumont. We knew the ones at Beaumont were $38 per metre and were told the ones selected at Amber were $45 and $49. We were charged about $30 over our allowance at Beaumont so figured we would be up for a few hundred. Although Amber assured us they would do it as cheap as possible for us. The invoice we received has the bathroom tiles that we were quoted at $49 at $76. Ummm big difference there. It wouldn't have even been considered at that price. We have also been told that the $45 tiles are $15 per metre over the allowance. Not sure how that works when it wasn't even close to that with Beaumont. So it appears the choices in tiles are either a company that can't provide or a company that lies about price. And neglects to call when they say they will. Well that is two companies I will never use again. Lucky for any future endeavours there are plenty of other tile companies in the area.