It seems like the checkout system is trying to import data from Gpay to the shipping method as a different address, rather than using the default billing address. This is also not populating the "phone number" field so it comes up with an error and is not functioning properly (supposed to be "express" checkout!).
I've already logged this case with NETO (2 months ago with no development yet) but want to know if anyone else is having the same issue?