feedback that I did not leave?

This is weird so hopefully someone has an answer.  Under my seller ID I had a buyer that left me neg fb without contacting me at all with her issue. The fb was very harsh and unwarranted, because of that I was not going to give fb. Tonight I went into EBAY on my iphone app and was going to see if I could leave fb but state that I was disappointed that she didn't contact me, which I didn't do as there wasn't an option to leave fb. I then logged on to my other pc and low and behold it has a positive fb left for her from me with a standard line that I have used b4, eg, happy with buyer etc.  How has this happened when I did not input this info?


Could it be the app on my iphone has automatically updated her fb?