Long ago, I also had a bad experience about similar issues. Something obvious that does not get resolved.
I was pressing my reps very hard for not being able to give me an answer.
Finally I requested to talk to somebody from policy team. And it happened, and the reply was that they do take a look into this stuff, but I still did not get an answer onto why particular cases were no resolved. When I asked about time needed, the answer was anywhere between 24 to 72 hours depending on the case.
All after all, while I saw some stuff taken down, not all was gone, and I was still coming across things that were a very obvious "no, no".
The biggest problem I had with such stuff was that I was losing tremendous amount of time in gathering data about this, plus I was under big stress simply because I'm that type of a person - I can't stand when something obviously is wrong and has to be fixed, yet the authority is blind, on purpose or not (don't really know).
Once I lost my team, and somehow stopped working on some of the campaigns that were susceptible to irregularities and violation of AdWords' TOS, I moved on and felt way, way better about my business.
Man, when I just remember... I would get squeezing feeling in my chest and my arm would go numb while on the phone with my rep, and poor girl (I believe so) couldn't do anything as that was for the policy team (they'll never admit that, but I do have more experience with policy team outside of this case and my impression was that they're a different kind of people, at least while they're at work).
Don't know... if it bothers you, stay calm but keep checking on the case. What I would do is I would tell the support that I would check in few days, and that if I still see it that I would contact them again, and do an infinite number of follow ups until I either:
- get an answer why something like that can run, or
- see it gone
They absolutely don't have to tell you anything about that account in order to confirm or deny a case. It's just their way of getting away, and obviously to hide anything that could open a hole for people that actually want to abuse the system.