I got a negative rating. About 75 days ago, someone told me that if I waited for 60 days, the rating would be restored. It was about seventy-five days now. Will the problem won’t be solved until a new order is received?
The information provided to you was incomplete. The ‘60 days’ number only affects the " Achieve these goals to become a Level X Seller". The average of your rating includes ALL reviews ever given, and old ratings do not go away. No one knows how rating affects the algorithm.
Actually, I am unable to send buyer request. And Sorry I forgot to add this information in the post.
Then, yes, you will need to earn more positive reviews to nudge the average up.