I only have the following product code [Activation code removed by Mod, Please don't post them on the forums. It's like posting your credit card number] and no other proof of payment. I do however want to update my Lightroom 4. I also have a case number: 0219261203 Please advise.
Update to what?
We here in this forum have no idea what your case number refers to, we are mostly just other Lightroom users. So explain the whole thing it detail.
You can buy an update to Lightroom 6 in the Adobe shop.
Here you can select in the Lightroom section if you want an update an from which version.
As a newcomer and first time user of this forum, I was not expecting this rudeness, so goodbye forum.