请问xiaobaitu, cancelled check for petition fees

Several days ago, I cancelled my check (petition fee to B2) before USCIS cashes it. Now I received a notice said I own them $200(fees)+ 30(penalty). And it said on the back page if I don't pay them,they will report to credit record agency and use other sources to collect the money. I only want to cancel the petition. In this situation, How could I do?

Thank you very much in advance for your help.

所有跟帖： 

• You'd better pay the check,then write to CIS to withdraw your ap -xiaobaitu- ♀ (167 bytes) () 07/27/2006 postreply 11:42:12

• 回复：请问xiaobaitu, cancelled check for petition fees -msnbc- ♀ (289 bytes) () 07/27/2006 postreply 11:49:19

• Legally,you may withdraw your immigration application -xiaobaitu- ♀ (113 bytes) () 07/27/2006 postreply 11:54:58