I found that most other reps who send private messages CAN be replied to. So keep on posting til you have your required number of posts, then hope that a different rep (not Anne1) picks up your post and sends you a PM that you can actually reply to. A lot of us are reluctant to post our phone's serial number on a public forum, not knowing if that info will be redacted or not.
If you are ignored for awhile, just keep posting a new topic until somebody responds. This forum is only a hall of shame for Tracfone, as they don't actually post any useful info, as I guess they don't get the whole forum concept.