This kind of thing used to stress me out. It took me awhile to finally find peace but it comes down to this:

We all know what Uncle Ben told us that ‘With great power comes great responsibility’, and while that’s true it also must follow that ‘With little (or no) power come little (or no) responsibility.’

The systems in place have taken nearly all power out of your hands to fix the situation yourself. If you had (even temporary) admin access available to you, you would have fixed the situation yourself in a few minutes and completed the task. However, the systems around you are designed to limit your abilities, and channel you through narrow support paths that they themselves are limited in what they can do.

You responsibilities are to properly identify the need for support and follow the path (no matter how inefficient), and notify your direct boss of the situation that is causing the delay for the deliverable. You did 100% of your job here. No, it shouldn’t be this hard to get this thing done, but it is, and its entirely out of your control. Because you have little to no power to fix the system, you have little to no responsibility for the problems it produces.