It is hard but I think one has to keep an eye on one's goal and, if you want to talk to T and do not get a call back in a reasonable period of time (48 weekday/work hours, that would have been Monday at the latest) then you call again. I remember when I was initially referred to a clinic and my therapist and was supposed to call and get an appointment and I called and was put on hold for over 20 minutes before the phone system itself disconnected us. I did not know what to do? :-) I called back the therapist who had instructed me to call/referred me and she was upset at the situation, that I had waited on hold that long and taught me how the assertive/self esteem thing was to wait a minute or two, hang up and call again and explain you were on hold too long :-) Depending on when you see your T this week, if not until Thursday or Friday, I would call, leave another message that you called last week and did not hear back from her and suspect she did not get that message but you would really like her to call you today or first thing tomorrow.