Thank you for your reply. But I think you did not get my point. What I meant is if I can rebid within the 72-h when it is already the last serveral hours for check-in. For example, if my bid on Jan 1st is rejected, but I am going to check in on Jan. 2nd, so the whole day of Jan 2nd is still within 72 h from the first bid. Under this situation, do they give me a chance to bid again in the last several hours before check-in, say, at 1PM, Jan. 2nd? Thanks.