Anyone used QBCC early dispute resolution ?

Hi all, first time posting here !

I was wondering if anyone can share their experiences of using EDA ?

I'm building a house in Qld and discovered our builder installed wrong size tiles.

After meeting with builder today, found out they don't even offer standard range in size 60 x 60 which is stated in the contract " All tiles to be 60x60 from standard range".

At the selection day we were shown his standard range tiles and we've picked one unknowingly that doesn't come in 60, only 45x45

Their argument is we've picked the tiles.
(Though there were no communications that his range don't come in the size we wanted nor the tiles we've selected comes only in 45) therefore they are refusing to rip them up and reinstall at their cost or compensation.

I'm hoping to reach an agreement to remedy this issue and get back on track ASAP but struggling to point out that they are in the wrong.

So my question is :
How long did it take to resolve your issue using QBCC ?

I'm not sure if this is under detected work, maybe more of breach of contract ? Do you think QBCC can resolve this matter or should I go to fair trade ?

Or any strategy advice would be very appreciated !!

My best outcome would be
We reselect the right tiles and they install at their cost
Or we get reasonable compensation and keep the tiles as is.

Thank you so much for reading this !

 

Try talking to the Building supervisors boss. (Construction managers)

 

He is the owner. It's a small company, we have on site manager but never dealt with him.

 

Ok so your larger tiles cost more to lay. So it's $0. You specified the tile. Try telling them the paint colour was wrong when you said dulux canary yellow