How do I send a processor approved for RMA?

My Ryzen 5 1600 is affected by the segfault bug. I have initiated an RMA request and it was approved, but I am completely stumped as to how I proceed. 

 

I was told to send the processor via DHL, and was given an "account number" to use. In the DHL site I have to fill out a customs declaration - how do I fill it? What do I put under "value"? What do I put under "weight"? 

In the end of the process, I am asked to pay using either credit card or PayPal, and there is nowhere to input the account number supplied by the support email. Going back to my DHL profile page I can link my profile to an account number, but entering the account number given by AMD support yields an error message saying this is not a valid account number. 

 

So how do I use the supplied DHL account number to send back my processor to AMD? And where can I find a clear description on how to fill out the customs declaration for the package?

 

Thanks,

Itai.