If you're in the USA (elsewhere I don't know the rules) there is a big difference that isn't immediately obvious.
With a credit card, you are not liable by law (regulation) so you always have this benefit.
With a debit card, most reasonable banks offer no liability as a customer retention perk, but nothing requires that to be true. They could at any moment decide to leave you hanging, if they decide it's cheaper to lose you as a customer than offer the benefit.
How quick do you want it to happen? I know Barclaycard set the debt to one side, so you don't have to pay, aren't charged interest in the interim.
It's my understanding that in US you "just" ask the bank to reverse the transaction and they do - if the company still believes you owe them money after that, they can pursue you through collections or other legal means. The bank isn't in charge of "investigating" anything.
I'm not saying it's better - just that when Americans mention "just do a chargeback" it doesn't really work this way for people outside of US.
If it was a non chip transaction, and the merchant has a physical presence, then the chargeback is almost always immediately approved due to the merchant not having updated their machines to accept chip transactions.
https://www.merchantmaverick.com/the-emv-liability-shift-now...
If it was an online transaction, it gets murkier depending on how secure it was. I have been asked for SMA 2FA confirming charge and amount when buying from BestBuy.com, which I imagine is harder to chargeback than a hotel reservation made without the hotel even verifying the card name/address or requiring CVC.
But 99% of the time, if a product/service is blatantly not delivered or the charge was fraudulent (stolen, higher than receipt, etc), the bank will almost always immediately reverse it for you. Although, with chip transactions, I am not sure how it works if you wait a week or month to report it stolen. Presumably, the onus is on the cardholder to report it lost/stolen within a certain period of time.
Of course, whether or not a bank reverses a transaction for you, the merchant can always take you to court or collections (not that they would win, but it would be an inconvenience to deal with).
I bought something online that was supposed to come in two packages. One package arrived. The other didn't arrive even after three weeks. The tracking information they sent me was wrong, and when I figured out what it was supposed to be, it showed as being stuck in one of the sorting facilities.
I tried to contact the vendor over a period of a week- emailed them, called them multuple times- no response or reply.
I called Amex and they opened a report. They asked me if I'd tried to contact the vendor- what had they said. I even explained that I didn't feel I was entitled to the whole amount, only the part for the second package.
Amex told me that they'd need to open up their own investigation, attempt to speak with the vendor, etc. and I should expect to hear back from them by email in two weeks.
That seemed reasonable to me.
Three days later, I got an email saying they'd give me the entire amount, including the part I didn't ask for.
A few days after that, the vendor got back to me and it turns out the tracking info was wrong, and the package had been delivered but I hadn't seen the package.
I felt bad for them that they were out the money for the product, but the fact that they sent me wrong information, didn't contact me for a week, only responded after the bank contacted them, and then misspelled my name and offered no apology helped curb some of those feelings.
All in all, the process was easy and reasonable.
I've only done two chargebacks in my life, and I think the other took a bit longer but was roughly the same. The bank is doing very rough justice but if the amount is small enough, they just offer it back to the customer as in my case, which was ~$500. If it was a larger amount, I'd expect a longer, more involved process.
It's this way in the US...for major credit cards and banks.
If your bank is a community credit union or you have a usurious credit card, the chargeback experience [can be] as onerous as yours. It starts with you needing to fax all of the required forms and evidence.