Johnson Riddle & Mark, LLC False charge of debt, summons, automated dialer hangups Newberg, Oregon

We have similar situation and checked with the State of Oregon and Johnson Riddle is not even registered as doing business in Oregon.  They seem to be out of Utah or something.  How can they open an office here and not be registered as a company. 

Figured I should update with everything I think is relevant, so here goes.

a) Haven't received a single thing from them in the mail since their automated dialers have been dialing me.  No warnings, no christmas cards, no nothing.

b) The summons look dubious at best.  I have never seen official summons before but these look a little bit sketchy.  They're on letterhead from JR&M, no mention of a judge (though I am not sure if this is required), nothing relevant to my county's court (addresses, phone numbers, etc), the case number is hand-written in blue pen twice on the summons while the three signatures of the lawyer is photocopied.  It just looks... off.

c) The courier company that delivered it is legit.  Was kind of hoping they weren't.

d) The date the case was filed, if any case were filed at all and this summons just isn't something to spook me, is the same exact date I took care of the debt in question two years ago.  Probably is a coincidence but seems a bit odd to me.

I think that's it for now.  Still figuring out a course of action with this nonsense.  Any help would be much appreciated.  I know I'm not the only one being unjustly hunted by these vultures.