Hello Holyguaka!
I have checked your issue closely and I do not agree in removing your negative rating, since you had the same right to rate the buyer negative and the buyer was inside his rights.
Since we have a 3-day auto complete system, you do not have to worry regarding to the completion of the sale. You will only have to worry if there is an issue with your item and they open a dispute.
If you agree to removing the rating on the buyer’s side, I will remove the rating on your account.
So next time, please be careful and do not rate negative, if the buyer does not complete the order manually.
God speed!