Card Sharp
Getting into hotel rooms is big business, and I think it should be done with phones which (a) nobody leaves the room without (b) is ultimately more secure and (c) does not require single-use plastics.
I haven't heard back from either of the smart front- and office-door lock companies in the UK, which comes as no surprise at all.
Unless you've literally something in hand, the majority of companies (and people fro that matter) hope that'll you'll at best die, or at least go away.
And I'm doing neither.*
Mwah ha ha, mwah ha ha, MWAH HA HA HA HA HA.
[Ed. You might want to clear that with the guy upstairs?]