I just started the 2025 Physician Coding for CPC Preparation (T-Z) course, and it won't let me access the included Textbook "2025 Medical Coding Training: CPC Textbook and Practical Application Combo - eBook; AAPC; AAPC publisher". It's the first thing you do for each chapter/session. I emailed the instructors, but it says it could take 7-10 days for a response, and I can't wait that long. Please, does anyone have any ideas or suggestions??