Hello,
Dear iraniyohanbz,
Don't worry, there is no system that a seller can give Negative to any buyer. Seller can only give Positive.
More importantly, You as a buyer has given Feedback instantly but as per our experience since 8 years, only 1 out of 4 buyers give feedback. Feedback id most important for sellers rather than buyers. Seller's whole credibility depend on Feedback whereas any buyer can bid even new buyer can buy anything.
I have suggested so many times, if a buyer do not give feedback in stipulated time, Ebay system should give auto feedback considering that buyer has no problem in transaction. Because if any problem arises, buyer naturally contact Ebay or seller.
Out of 30-40 sales a month, only 7-8 buyer give Feedback. Very funny, sometime on our request, they just reply the communication as very good item like that. Actually, We think, all new buyers do not know the procedure of giving Feedback.
Thanks.