There is no JJD in this image. There is, however, an 11 digit number.
It's certainly nothing personal, but I'm always a bit leery of these types of requests, so I'm not comfortable offering an opinion as to what I think the numbers are. We leave these types of requests to the discretion of our members, so hopefully someone will have a suggestion for you soon. Good luck.
Based on the bar code and reverse reading it, I came up with: JJD 00 02 25 32 69 48 68 17
I confirmed this code by putting it into a bar code generator, placing that bar code over the supplied image, and then blurring part of it to match the blur of your original image. Looks like a perfect match to me. or
DHL is the shipper based on the JJD code. The number is accepted into the tracking system yet it has no record of the number. That either means my number is incorrect, there is something wrong with DHL with this package, or this is not a DHL tracking number and some other number that may still help you resolve the issue with DHL. So no joy