I am sorry you received such an unsatisfactory answer from the therapist. But I do think there may be difference in the idea you texted him about an appointment availability (which he may or may not have had - and seemingly did not from his response) and your earlier description of sending him many texts of a somewhat ambiguous nature about what you wanted- which I thought (I could be mis-remembering) you indicated you had done.
So, to me, these seem like 2 separate sorts of things.
Again -I agree his response sounds like crap in terms of reassuring and comfort etc.