That is because you incorrectly entered your ESN when you registered the scanner. The first part should be "38426088..." you put "38426880...".
I'll ask IT to reset the record so that a correct key can be generated. It might take a little while. When your key changes, enter the new key. Or, if the key disappears, click to make a new key. Not sure which method IT will use.
I had that exact problem. Somehow I managed to confuse a "0" for an "8" and transposed a few characters when I registered my new SDS200 at
my.uniden.com. It accepted the incorrect ESN with the checksum, and registered the scanner. When I went to enter the Provoice Key I purchased, it wouldn't accept it. I double-checked everything, and noticed my mistake. I reached out to Uniden Customer Service, and had a resolution in less that 24 hours.
First they asked me to register the scanner again with the correct ESN, which I did. I gave it a nickname to indicate it was the correct ESN, not my previous mistake. This morning there was an email waiting for me saying that the changes had been made on my account. I logged in to
my.uniden.com, and didn't see any changes at first. I clicked on "Get Provoice Key" or something like that. Voila! I was provided with a working Provoice key and entered it right away, without any problems.
Kudos to Uniden Customer Service!