It depends on the patients healing ability whether or not the scars can be seen by the naked eye. All patients are left with scars, some patients can be noticed. Some patients have microscopic scaring. Which cant be seen by the naked eye.
I feel you... Have you called daily and requested that they commit to an exact time to call you? Be assertive and use your voice. And if for whatever reason they still don't respond, then you can try other approaches.
And should they continue putting off getting back to you, you're still much better off reaching out to another qualified surgeon and getting their input on the matter than by going to Google. Really hoping you get some answers soon.