gave negative feedback to a seller now i cant see my feedback

[mechravishinde]

i received a faulty sony tablet from seller ephotobazar.
on teh very next day i took it by hand to their shop
in mumbai but they refused to replace it .so i gave them a negative feedback so that other buyers would be careful buying from them

today i checked their history of feedback i cant find my negative feedback in it

can somebody explain me what happened?

[uniquecreations2012]

try giving it one more. there should some technical problem.
ebay doesn't remove buyers feedback with their concern.