Call your doc, and if you can, give the pharmacist's name.

We used to have huge issues with CVS - they had their pharmacists changing stuff to generic even if that was not noted on the script. They are such a big company, they got dep discounts due to volume. Well, they did that with one of Dad's prescriptions. I just said, "uh huh." and left. Phned the doc. He knew just who to call. Got it all fixed, and added to the complaint file for the pharmacy.