Nissan Car Parts

I'm getting irritated to say I'm frustrated is underrated, I am not happy with Nissan regarding their customer services, seems like they do not prioritized customer needs, I've been waiting for parts its been two months now going to three months, 1 part was delivered other part still on back order which i don't understand, why would deliver one part if they're were order together. I've been calling in order to get feedback or an update. This was supposed to be escalated long time. I am really not happy i'm sitting here without a car this has caused financial constrain on my side. i wish they could prioritized customer needs.