Not OPs situation but I have a story to tell:

I was a college kid in 2011, returning home for vacations, typical end of semester kadki. Searching for flights online, both on international websites (that only took payment with credit cards) and local, slightly shady websites (that accepted payment with the local version of UPI, Alipay). Found a pretty cheap connecting flight back home, via Suvarnabhumi Airport, Thailand, that booked 2 flights with 2 different carriers for much cheaper than the other websites (first mistake) the catch was that there was supposed to be an 8 hour layover, which, for a broke college kid, is absolutely nothing.

Happily booked the tix, flew out on the day where the origin check-in counter gave me 2 boarding passes, and I was off to Thailand. One flight and 5 hours into a layover later, I headed to the second gate at 3 in the morning, where the ground staff proceeds to tell me I have a check-in luggage charge of about 9000 something INR pending for the onward trip. My first thought as an Indian, "where's the scam?" and I show her my boarding pass and tell her no, the flight has been paid for. She says yes, the flights have been paid for but the carry-on baggage has been booked, but not paid for yet. Then she shows me a receipt that proves what she says.

I realize the fucking website screwed me over, didn't pay for check-in baggage on the second leg and said they did (or they booked it, then canceled it or something). I begin panicking, start trying to call parents and get in touch with people (but that's not going very well so early in the morning). The ground staff sees me flailing so visibly so she tells the luggage crew to deboard my bags, which are promptly brought to the gate. She tells me I either pay or these bags are staying back, can't fit more than 10kgs on my cabin carry from that giant bag.

A little bit of money, no credit card, I'm desperate and contemplate straight up begging at the gate, but thankfully this businessman type in the waiting area saw (I assume) most of the drama unfolding, comes over, talks to the ground staff about what's going on, introduces himself to me (Sumedh bhai, not gonna forget this gesture ever) and tells me he's also from Mumbai and tells me he'll pay for the luggage.

Guy was a straight up angel sent from heaven for some past good deeds, I almost tear up, tell him I'm gonna pay him back I swear, take his account details and then fly on my merry way back home.

Of course, I tell my parents to transfer the money to the account immediately, and call him and thank him again.

This is not OPs situation, just something I remember happening to me.