Did your processor come in a sealed official AMD Retail Box or in some other type of package?
Did you create and logged in to AMD Warranty account?
The reason why I asked if it came in a AMD Retail Box is because if it didn't then it is a good chance you have a OEM 3600 processor which is not covered by AMD Warranty.
Did you purchase the CPU used or brand new? IF used and you are not the original owner then the AMD Warranty is voided.