Thanks everyone again for the advice! the seller replied
"Hi,
This bag is new as described, although I bought it as a display model. I had not noticed the stitching issue, and the other issues are superficial.
You will see that these bags in ink are very rare, and hold their price very well when sold as used.
However,I am a reputable ebayer as you will see from my feedback, and so I am willing to refund $150 USD as a goodwill gesture. If you are not satisfied with my offer I will accept a return, I will refund your payment less the postage that I paid, and you will be responsible for the return postage, which should include full insurance and signature."
btw she told me in the beginning before my purchase that she is also a member of purseforum.. I will contact Ebay regarding the situation. I don't think I should be responsible for paying postage..
what do you guys think?