It seems strange that a 5-star airline would not put much effort into service recovery.
I think those ratings should be re-evaluated every year. Although they are not a bottom-of-the-barrel carrier by a long shot, it still behooves me how they keep that rating.
Irrelevant...so let's continue with the discussion (which I think should be moved off the Introductions forum soon...)
Welcome
Les69 to AFF - funny you should talk about MH because I just finished a trip where I travelled with them (they are not my carrier of choice, but when you're travelling between Australia and Malaysia (and within), it's pretty difficult not to choose them).
A little bit of advice: probably not a good idea to put your email address directly on the forum boards - it makes it easier for spam bots to pick up, amongst other issues.
Now finally to your issue, obviously (although we don't have the full picture) the response from MH was not satisfactory. I would've expected that MH would at least have rebooked you all for the next flight (whether that was same day or next day). Of course, things get much more difficult if MH doesn't have a dedicated team in PER (which, although is still an assumption, I'm guessing is not the case: that is, they use a contractor like Toll Dnata or Menzies or whatever). But giving everyone the re-booking number which everyone (except for MH elites) will have to wait at least 15 minutes to get answered is a bit cold (although not entirely unexpected).
Now for those that don't live in PER, I'm surprised that they won't get any assistance (although it's not mandated in law
per se). I'd also be worried about those with MH connections (even other airline connections, although they are not constrained to assist you unless the connections are on the same booking).
For your sake, I hope you had/have travel insurance and were onto MH on the double. That seems the best you can do now, apart from also preparing and sending a letter to MH voicing your disappointment. If you have connections on the same itinerary, I'd be seeking to get those actively rebooked
plus you need to mention this in your letter. Don't actively seek compensation, because (a) it may not be coming, (b) there's no precedent for how much you should ask for, and (c) letting them decide to grovel or grave-sit is better than having
you do it in the letter.
MH took better care of us when our KBR-KUL flight was cancelled resulting in our misconnecting to our KUL-BNE flight. Although it was a mildly chaotic process that involved going from check-in counter to sales desk and back again twice, eventually we managed to get rebooked onto the KUL-BNE flight the next day, the next KBR-KUL flight and overnight accommodation at the Pan Pacific KUL Airport with three meals and three IDD calls. Mind you, it helped alot that we were in MH territory (i.e. dealing with MH staff). They really didn't have to help us as our domestic and international flights were on different itineraries.
Good luck
Les69 - hope you get the assistance you need. (This is my guess - you'll get what you need to get going, but it'll happen a lot slower than perhaps expected).