Bemused by National Tiles

Well, we did our tiles appointment on the 12th. "N" was busy so she promised to draw them all up, plot them and quote them either that day or over that weekend. She did not have the Illoura 36 loaded into her computer. So, instead of waiting, seeing it all, getting a quote etc, we went home and waited for the email.
Today is the 23rd and I now have an email. The tiles are about $400 under my budget which is good. But, (isn't there always a but!)

• The drawings she has used to "plot" them have someone else's name and address on them. Personally, I would not be happy if they start sending my name and address to other people.
• The ensuite on the floorplan does not have a spa and we do, although she appears to have drawn it on the elevations, so I am not sure that the sizing, therefore will the quote be correct.
• There are codes on the drawings that do not match the codes on the quote, so which one takes precendence?
• There are wrong codes and wrong tiles.

It seems that this all gets requoted again once we get contract drawings anyway??

So, my question is did anyone else have any of this happen to them with national tiles and did your tile quote change much between the quote before and after contract?