How does one register HGST HDDs? Buyer's remorse is setting in!

HGST Products HGST Internal Drives
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I’ve been told that HGST approaches warranty differently from WD. If a HGST disk fails you notify them and provide basic details (model/serial number) and they will THEN determine whether their warranty applies to you. That means that you have to keep your original receipt (good luck if it is on thermal paper with poor initial readability) in case they challenge eligibility. I haven’t checked back since posting to determine whether WD has imposed any uniformity – especially since the HGST approach s u c k s.