Ask HN: Large companies with good customer support?

This is a bit of a rant which is a result of trying to negotiate a quota increase with a large cloud provider. The experience was absolutely terrible. It felt like I was talking to man / machine hybrid which kept asking me the same questions over and over. I really don't see why it should be this big of a deal asking for 2 more vCPUs when 64 were previously granted.

I've had a similar experience with my mobile carrier - absolutely cryptic and opaque to get any sort of help.

Are there any examples of large companies with excellent customer support or is it just not doable?