I had a very similar one in my career. It's a little bit more complex than that, though -- the value of us as a customer was >>$1 mil per year (Google had several dedicated engineers for the partnership), but it wasn't a flat-on paying customer relationship.
The failure happened in a different part of Google than the one managing the relationship. The people who wanted the partnership to succeed were in Google's cloud hosting business. The failure was in Youtube. It wasn't anything like a bad flag; just a straight-up bug (which caused us to move our videos to S3, and scramble to put together our own video player).
Yes, we could get in contact with a human. No, the problem couldn't be fixed. Yes, Google did ultimately lose >>$1 million/year in revenue in part as a result of this and other failures (to AWS).