That's really disappointing. Sorry that you are having to take such a huge step backwards!!!
One thing that I'm seeing that wont be very popular, but something to consider, is that wire you are using reinforce your concrete slab. It's 100% impossible to keep it in the middle, or surrounded by concrete when pouring and spreading the concrete. Most crews will pretend to lift it as the go early in the pour, but that's just for pictures. Once they get going, they are walking all over it and pushing it to the very bottom of the concrete, where it does nothing. If it's not on chairs, or some other support, there is no way to stop it from being pushed down to the bottom.
I like wire for walkways, small pads that I don't have to walk on while pouring, and counter tops. Nothing else.
Concrete contractors like wire because it's cheap, it's super fast to install, you don't trip over it while spreading the concrete, and most of the time, the clients believe them when they lie about being able to pull it up while spreading the concrete.
There is no substitute for rebar.