Oh tell me about it.
I recently moved into new build. The postcode is on Royal Mail’s master list but it’s not recognised on any of the major mapping services yet. Even the street name doesn’t exist.
Moving in, I had five different orders with five different couriers. Only Royal Mail actually delivered, which is understandable since they have to go door to door anyway. DHL, FedEx, DPD, Hermes and TNT all failed. Didn’t even bother to just ring me and ask for directions.
And when I “contributed” to Google Maps to make them aware of the new road and postcode it took them six weeks to review and reject my edit!