Your demanding for 0.25BTC for this account means post quality should be super good is it? You didn't mentioned any thing about post quality. If post quality not good then can't join any high paying signature campaign then no use of this account. The market price of 0.2 to 0.25 BTC is for very high quality posts accounts so you must need to provide details about your post quality and which section you posted mostly.
I never got the trouble to join the signature campaign. The reason I sold my account is, I no longer have time to joinning the signature campaign.
Edit:
Sorry, I remember I once rejected with the reason I have rejected by bit-x or something I don't remember very well. In fact I have never been rejected by bit-x, I've joined the bit-x and then I really dont have time so I decided to stop. And after all this time I have never opened this forum, I decided to sell my account.