No parts available 90 days shocking

No parts in stock, I then get notified on the day of collecting my vehicle that the part is back log and will take 30 days, today 20 August 2024 I followed up and now I was told the part can take up to 90 days for delivery. In the meantime my vehicle can be serviced by Nissan because they cant ensure customer service level is met. My vehicle will also end up being damage more by driving like this as it is my only way of transport.

I am sure a turbo boost pipe can fit in a box and be air couriered to the dealership for fitment.