Stranded in Vietnam

Travelling with my wife & 3 young children is hard enough but when jetstar change your flights without consultation, then cancel your return flights after you have checked out of your hotel & have no accommodation- your dream holiday soon turns to the holiday from hell. To add insult to injury- jetstars response was " find someone else to fly with", which luckily we did- Vietjet, who unlike Jetstar actually do provide customer service.
I have reluctantly attempted to fly with Jetstar since ,stupidly thinking the isue may have been a 1 off- gues what Flight was cancelled 2 hrs before it was due to leave & true to form - no option of another flight with jetstar that day, thankfully rescued by Tiger Air who are far more professional & pleasant .
I may be a slow learner but Jetstar will never get another dollar out of me- My family ( 5 of us) usually travel twice per yr overseas & 3- 4 times interstate, & will be travelling airline but Jetstar for many yrs to come.
Jetstar- the worst airline I have come across in 40+ yrs.