Delay in Amended Tax Return

Hi,

I am filing Federal Amendment for the year 2018 and I have sent my 1040X form in April 1st week with Supporting Documents. I stay in Colorado and my tax filing company asked me to send documents to Department of Treasury, fresno. After 8 weeks I did My amended status hasn't been updated so I again sent docs to same IRS on Jine 1st week. Still I don't see any response.

Is this delay because I have sent to wrong location or because I sent it multiple times? Not sure of next steps. Can anyone help me with ideas.

posted