At last. I actually did abandon B2 over DO's Spaces due to the lack of this feature, despite the far more competitive pricing on your end. That, and the lack of AWS API support, but that was mostly related to my particular use case, which was the need to mount cloud storage as disk partitions using s3ql which mainly supports AWS, OpenStack and compatible services. It does have preliminary B2 support [0] but it was really hacky and I ended up losing data because of it.
Having a prepaid credit option and the option to use PayPal for such payments like DO does would have tipped me towards Backblaze's favor to the point of trying to fix s3ql's B2 support, though. ;)
