If I understand You correctly, You're just a fool, accepting an offer too early. Even if You odobriti the money back yourself, the customer will leave You negative private feedback. Public feedback on such contracts does not exist, to my knowledge.
About to restore JSS via support.
If You work long and hard at the exchange, sooner or later, if You of the right place rostut, You will receive Top Rated status. This badge allows You to remove one public opinion of 10 works. Let's say You work 2 months, closed well 9 contracts, however, the 10th You are talking with a terrible crash and the client You leave negative public feedback. In this case, You can write to support and ask them to remove the bad, in Your opinion, is feedback. Remove guys any opinion(whether 2 star or 5 there, the painting is written about how bad You or just comment in the spirit of fucking asshole) that You don't like, but only 1 out of 10, please note this point. At the same time, be deleted public feedback and I think private feedback will not be uchatsa in the calculation of the jss. However, You will still be able to find this contract in the history of their projects and payments. Mention of it just disappear from the public profile.
About jss will drop or raise at all written Kacha stories...
If You read the faq-section, where it will be written, which considered two values of JSS for the last 2 weeks, and 6 months, and then displays the maximum value. However, as this value is obtained JSS known only to key personnel of the exchange.