Country Homes Ltd.

My wife and I purchased our dream property in Milton from Country Homes currently under construction. The initial process of sale and purchase agreement went fine. I was told that Structural and Decor meeting will be done in a few months where we can get some Structural changes done and add some upgrades in Decor.
We were waiting for the meeting invite and were following up with the Decor team (Tanya) but never heard from them. We were sent pre-construction form recently that had Structural change options. But when we returned the filled form to Decor team(within 2 days) with required
options they came back saying construction already started hence we
won't be able to get those changes. How can construction start before
they get Pre-construction form from the customer?
Also during our purchase we were specifically told that we will be provided with the oval soaker tub in Master bathroom which was provided to other houses by builder and for which we paid as well($5000).In the Decor meeting ,they said we won't be getting oval shape soaker tub(instead a rectangular one) to which we told them about
our initial payment for soaker tub mentioned above. They
said they will check and get back to us. But even after 2 reminder emails,
we are not getting a reply.
If anyone from builder side want to discuss further and provide us with a solution, we are happy to talk.