worst customer support experience

I have an existing case that has been ongoing for a month but I want to complain about how the case is being handled. 
The isuse is that in Adobe Web, adding 3rd party storage is only available in FREE acrobat accounts. So much for your "prebuilt integrations" https://www.adobe.com/acrobat/pricing/compare-versions.html

I logged the support case on April 1.
I was told I need to upgrade to a higher (enterprise) subscription.
Then I was told this is not true and is in fact a bug, and will be escalated to engineering.
Three days later no update, I called and got passed around between 4-5 departments.
After a week I managed to get a hold of someone from technical support, queue another week of back/forth emails and screenshots.
We only managed to do a remote session after a week to replicate the issue. He even had the nerve to tell me I was trying to show a different problem altogether. He escalated the case to engineering again.
Another week of no updates. Called customer support and spoke to an SME and his supervisor, they promised to get in touch with engineering after 2 days.
2 days came, SME said this is indeed a bug.
After a few more days, SME came back saying this is NOT A BUG but in fact a FEATURE. And even if we upgraded to the enterprise subscription, we still wont be able to fix our issue.
SME and his supervisor stopped replying to my emails. 
Called Customer Support again, managed to get a supervisor's manager. Manager promised, even swore to call after 24 hours within a specific 1 hour window and that he would involve his own manager if he couldn't call me. He just needs a bit of time to research the issue.
Surprise surprise, manager never called. 
Called Customer Support again, still heard the same promising words: escalation, callback, ASAP, very sorry, etc etc etc. Like groundhog day.