Well, it almost happened to me. I just finished with my first year contract and in that, I was asked to pay the Credit Bail which was 2000 yuan.

They wanted me to re-signed again, so I aske them to forward a copy of a revised contract to me with good terms and loo and behold, the credit bail this time round, increased to 6,000 yuan with a dodgy explaination that the goverment's PSB's new regualtion for foreign expert.

When I told them that won 't work for me, they went back and slashed it down to the same old 2,000 yuan. something to me really smells fishy here.

So, 've lost interest to resign again.