A Microsoft file hosting and synchronization service.
Well, they closed my ticket. They said they didn't do anything wrong so there's nothing to fix. This is what I sent when they asked for feedback:
"That is not a satisfactory response. Mistakes happen, but you could have responded to it better by taking responsibility, apologizing, compensating customers and taking steps to ensure it doesn't happen again. None of that happened.Instead, your agent kept denying that there was no new issue, despite ample evidence from the message board with an influx of complaints around the same date.Once it was no longer deniable, the agent then tried to put the blame on customers, and refused to admit that a Microsoft engineer f***ed it up for hundreds of not thousands of customers. Now we are the ones who have to waste our time sorting out an issue caused by your engineers' incompetence and negligence.If you cannot afford to compensate us for your mismanagement then the least you can do is use that money towards hiring competent engineers and managers so that this does not happen again.I will strongly reconsider renewing my OneDrive subscription, as its engineers are no longer reliable and managers are no longer willing to take accountability."