Attempting to give honest feedback

[myheadbeauty175]

4 times I have tried to describe what was amiss with my purchase, yet EBay keep popping up, asking me if I'm positive I want to tick Negative on the feedback form.  The Second I Attempt Typing the word "Sapphire", it self deletes! **bleep**!!! EBay mediated well between myself and the seller, yes. But seeing as I had to buy the return label then be reimbursed by the seller, it was going to cost More for return than the actual cost of the earrings themselves!  Well I must have not read the conditions when returning something. Or is that for sellers from abroad? 

Look,  my local reputable popular jewellers examined them and told me they Definitely were Not Silver! Nor were the stones CZ, Nor was the Centre stone a Sapphire!! I was robbed!  Only £8.99, I know, but Still!  Was EBay Preventing me from leaving an honest Negative feedback!? Or am I paranoid!?  

THEY WERE NOT SAPPHIRES!!!  Am I allowed to leave the seller's name here btw?