check 被别人cashed,下步该怎么做？

有点复杂，肯请有心人帮，特别是热心的老猫。

2011年，房子refinance, 旧的信贷公司 A (在德州）寄出的check （数千元）没有受到过. 期间换工作，搬家，这事没有跟很紧。

到了2012年报税，意识到，打电话给客服，每次都讲会寄新的，但内部审批很慢。几次后，实在烦了，filed a complain to BBB at end of 2012. A company returned back with letter stating the check has been cashed into an account matching to my name through Wells Fargo (WF), case closed.

I was never a client to WF, therfore, I went to local WF branch, was told it is likely a crime, I was suggested (by company A and WF) to file police report, now it is March, 2013

A police report was filed, 6 months later, police report showed that someone cashed the check by my name but none of other correct personel credentials.

I forwarded the police report to Weels Fargo and A company, WF would not entertain my case since I am not their client, and techniquely, this check is not my property.

A company is not responding until I called BBB again.

A company asked me to fill lots of forms and collect all my credentials, and told me to wait, upon my inquiry in Nov, they came back to me that on Oct,2013, WF rejected the the fradulent claim since the checked was cashed more than 18 months ago.

A company stated that the case is closed, I could not get a new check.

下步该怎么做？ 很无助呀，我现在在加州。