Depends on the bank.
I had HSBC in France repeatedly deny that they could not and would not perform a charge back forna specific online transaction without a police report.
I ended calling VISA, who conference called my bank branch, explained that they were legally required to perform the charge back. The bank capitulated on the phone, the VISA guy hung up, and the bank said: VISA's opinion aside, we refuse to perform a chargeback.
I ended calling VISA, who conference called my bank branch, explained that they were legally required to perform the charge back. The bank capitulated on the phone, the VISA guy hung up, and the bank said: VISA's opinion aside, we refuse to perform a chargeback.
France...