求翻译：如果还是不行，你们是否可以尝试联系到卖家，我所承受的是双方一人承担一半的责任，至少退给我一半的费用，谢谢是什么意思？

If you still can't, you can try to contact the seller, I have suffered is the responsibility of both sides of a person in half, back to me at least half the cost, thank you