My thesis advisor is based on another city and we barely had meetings during my master thesis process. At most three times. He responds very late to my emails and I have to wait weeks sometimes.
But the deadline is approaching and he has to give feedback to me.
(Instead he advised me to find a second advisor from where I work to continue quickly with her and that person helped me ten times as much as the actual advisor did!)
When should I remind him about my emails and that I'm waiting for his feedback? I know they can be busy but I was too alone and isolated in this process except the guidance the second advisor from my workplace..