Received a call from this telephone number. No message was left. Anonymous callback reached a non-descript greeting synonymous with either a charity or telemarketer. I suspect the latter.

They just called again.

Hello Paul-C. We appreciate your posts, but if you could do us a favor and please stop using this site as your private phone call log.
We have had issues with other folks spamming threads with multiple posts of the same thing over and over again and I just don't want you to fall in to that habit.
Thanks in advance.

Heinz,

Does the site have a specific limit on the number of times that calls from a given number should be noted?....as in make one entry per number and that's it? Yes, I have driven-up the post count on some numbers....such as Sears. But if there is to be a hard cap on post counts, it would be mentioned in the site's ToS.

Going forward, I will limit my posts to one or two per telephone number.

There are several reasons for that.  First, it messes up the search engines, and they think that it is spam and not a valid post (from what I have been told).  Second, think of it as coming here for the first time and seeing one person post over and over and over nothing but the same thing.  You are probably not going to take that as a valid post for starters and think that either someone is spamming or the site is worthless.  Third, simply saying over and over "Sears called me" doesn't really give anyone any valid information.
Now, if Sears really is calling you that much, then why haven't you sent them a certified, return receipt letter telling them to stop or else you will file a TCPA lawsuit against them?  I certainly would have, a long time ago.