Comment 15 for bug 2014954

This in your changelog is a Debian keyword
  Closes: #2014954
To work on launchpad that needs to be
  LP: #2014954

I hope that helps and gives you a few minor things to fix.

I feel too much out of my comfort zone to fully sponsor this anyway :-/
But I wondered about one more thing to ask you, given that you say this is "the feature itself might have bugs and glitches since it is a brand new one and is not widely tested by the laptop vendors" wouldn't you think it might be better to wait until upstream https://gitlab.freedesktop.org/mobile-broadband/libmbim/-/tags tags 1.30 - then at least we'd have the testing of the developers there and all the code they tested it with.