I chose a car I like at this dealership and they referred me to Planet 42, which I was pleased with

I chose a car I like at this dealership and they referred me to Planet 42, which I was pleased with. They helped me sign a contract on behalf of and with Planet 42 on 26 April 2023 but to this day I have not received the car as promised. They do not give me regular updates on progress and this frustrates me to a point where I am considering cancelling the deal.