@Gigi24 , whereas the Zip code of the Austin , TX processing center does not match that shown on your tracking, it probably went to the right place. If you are in refund position then you should be able to see the processing status at "Where is My Refund" page of www.irs.gov.
If you used the USPS services , then you could contact them for an explanation. ( thought registered mail from another country would be handled by that country and USPS would only provide delivery service once the material arrives in the USA , implying that the tracking is done by the local country mail service--yes ? )
