I would just let it drop.
I've never had a landlord here that gives a damn about their tenants or keeps up with their obligations; as someone else mentioned too many seem only to care about the money coming in every month, with no thought that not keeping their tenants happy means that money will continue. But then again, if you move out because they're not keeping you happy it's likely that you will be replaced with a tenant who doesn't care so much - possibly because they are so used to terrible landlords.
I moved into my apartment about a year and a half ago. It's a long story, there were a number of things that we had agreed upon that they would have fixed and they did little. I had the choice to not move in, or move in and accept things. Since then things have broken - what they did fix were very poorly done, just enough to look good, and so on. I've tried to get them to fix things and they say "sure" and then we never hear anything again, no matter how many times we've asked.
About 5 months ago, we found out that the owners (they are sisters who told us they inherited the department from their deceased mother) have been engaged in a legal battle for a number of years (well before we rented from them) with their estranged father and did not have clear ownership to the apartment. Which surprised us because 1) we told the sisters when we agreed to rent the place that we were not just going to be here for two years as moving is so expensive (not the moving costs themselves) and they were very happy that we wanted to be here long-term and 2) we did everything above-board, closed through a real estate office, paid the expensive commissions and all, and no one seemed to think the title was in dispute at that point. The sisters came over about three months ago and told us that they had been ordered by the judge to sell the apartment and split the money with their father. So we now have people coming to see the apartment every so often and interrupting our normal life, not to mention the fact that we will most likely need to leave at the end of our contract in April. Also not to mention that the father has come by here a number of times and yelled and screamed at our girls over the front door intercom asking what the hell we were doing in his apartment.
Every landlord I've ever had has only worried about getting their money and not doing much for the apartment. Maybe I've just had bad luck. If so, I know two other buddies who've had the same kind of luck. Including one who lived in his apartment for nearly a decade, paid the rent, expenses, ABL and everything, not late once, and was charged $45,000 pesos because they needed to repaint the apartment and replace the electric stove-top in the kitchen after he moved out. It's a 50 sm apartment (i.e., not much wall to paint) and the stove-top never worked from the moment he moved in (he rarely cooks, so he didn't worry about it, though he did inform them - and anyway, I recently bought a refrigerator, a freezer and a washing machine for just a couple thousand pesos more than what they charged him to replace the stove-top). They wouldn't come over to check the apartment when he left, and it was nearly three months later, after he had been trying to get back his $2000 USD deposit, that they came back with these charges - they'd already done the work they said and not only he couldn't have his deposit back, but he owed them more than twice that for the "repairs" they had to do on his apartment. I've been over to his apartment many times - it was spotless while he was living there and I would have moved into the apartment with nothing additional done (except for the stove-top) if I was a prospective tenant as I saw his apartment after he moved out and had it cleaned. Even if they did need to repaint, I don't think it was necessarily his responsibility because it was much less than normal wear and tear and there is no way that it cost nearly $30K pesos to paint anyway.
I end up just paying for things myself, for the most part, instead of getting into a long running battle and trying to make things "right". Maybe that's wrong, but I have enough aggravation in my life as it is. And maybe it's a bit of a cop-out, but I don't believe there's much justice to be had for people who are not poor here, and even for the poor I haven't seen much justice, as justice is defined by Argentina's own laws.