I think this is a perfect example of social worker vs psychologist. Sometimes the social workers just aren't held to, or given the proper training!

Yes this was improper behavior. Unless you signed an agreement when she may call you, and failed to note that she should not leave indepth messages, she is way over the line on this one, imo.

Tell her to her face. And hand it to her in writing (keep a copy.) This breach needs to be addressed in session, imo. It may be indicative of other issues that might arise with her, it might not.

TC!