U.S. Bancorp Prepaid Card Complaint

U.S. Bancorp Prepaid card department,

Gift or merchant card Unauthorized transactions/trans. issues Maryland

I bought - - gift cards issued by U.S. Bank at - on -/-/2016. When i attempted to use them, i got error " not authorized ''. When I called number listed on cards for customer service - i discovered that cards were registered with someone else name. That means they were stolen from me. I was advised to fax supporting documentation ( cards front and back, receipt etc. ) to Stolen Replacement Card Request at fax number -. I tried multiple times to fax documents to that number. The fax never picked up and i was not able to fax my documents. I called customer service 3 more times. I asked for a different number, email address or physical mailing address. I was told that 1. there is no mailing address, 2. there is no email address and 3. - fax number is the only way to send information to card services. I am not able to send that information because the fax number that they gave me is not working.