Wild Card: Internet Communication Mishap

This situation is confusing to explain, especially in writing, but I hope you all understand it. I am a student at Oregon State University. I am moving out of state and so wll not be able to finish my last couple of classes at the campus. There is a specific course I need for graduation that is only offered on campus during one specific term. This is very inconvenient for me. So I ahve been looking for the class to take online at another university, this is what I was told to do. But in the process there was a miscommunication that may have been prevented if the interaction was in person. I have been emailng the head of my department back and forth for some time now to send her the course descriptions to see if I can use the class to substitute for the class I need for graduation. The problem was, the entire time I was emailing her the descriptions and her telling me no the class does not match or it is the rong level, it all could have been avoided. See, the situation with this specific course is that there is another option for it. And the way these courses are set up is, one class is consecutive to the other in time period, but they both teach the same content. Basically, both classes teach the same thing but in different time periods. This means that if one course description's time period did not match one course it could possibyly match the other, and then I would be able to substitute it for the class I need. The problem was that the whole time I was emailing the head of my department the descriptions, she was only comparing them to one of the two options I had not the other. So I had o go back and email her the same descriptions again. I did not understand why, if she is the head of the department therfore she should know what my options are to fulfill the requirement, why she did not tell me to look for courses to match the other descrption as well. I hope this all made sense to you. I know it may not have because every time I try to explain this siutation to someone it is always hard to explain. But the moral of it is that if I had went in and spoken to the head of my department instead of emailing her, she may have suggested to me to check for matching courses for both options rather than one. Time would have been saved. It would have been hard because of how many time I emailed her and she emailed me back. I could not possibly hve gone in to her office that many times, but it would have taken care of the little miscommunication. I feel face to face may have taken care of the situation in that if I were speaking to the head my department face to face she may have been more inclined to make suggestions for me. This reflects the idea that we hae been discussing about how virtual communication makes things less personal. I think if were having a face to face conversation with her I may have gotten more personal help.