Maybe I've just had bad luck, but in my (moderately limited) experience, premier support == guaranteed indian call center so they can meet the higher SLAs.
Actual conversation with premier support:
me: hey, it looks like the format of the billing report CSVs changed without any documentation or versioning. Can you confirm? Also, it looks like the line endings are now randomly intermixed between windows and linux style. Whats up with that?
support: STOP OPENING THE CSVs IN EXCEL, IT CAN CORRUPT FORMATTING.
me: good call, let me remove excel from our usage monitoring automation pipeline......sike..
Aside: I am convinced that EA billing/usage reports are manually generated via Mechanical Turk.