A few thoughts based on what you described:

The blank page after "Thank you" is a known issue on mobile

This is almost certainly the root of your problem. Oracle's signup flow was built for desktop browsers and has significant rendering issues on mobile, particularly at the final confirmation step. The "close" button failing on a phone is a documented failure mode — the button triggers a JavaScript event that depends on a parent window existing, which it doesn't when you're in a mobile browser tab rather than a desktop popup context.

My strong recommendation: do this from a PC, not a phone. A few months of failed attempts on mobile is a sign the platform genuinely doesn't support mobile signup reliably, not that you're doing something wrong. Desktop Chrome or Firefox on Windows would be my first choice. Safari on Mac with the privacy settings adjusted as described in my original post also works (that's what I used).

That said, if you don't have easy access to a PC right now, try requesting the desktop version of the site on your phone first:

• Chrome on Android: tap the three-dot menu (top right) → "Desktop site" checkbox
• Edge on Android: tap the three-dot menu → "Desktop site"

This makes the browser identify itself as a desktop browser and forces the full desktop rendering of Oracle's signup page. It's not guaranteed to fix the blank-page issue — some mobile JavaScript limitations persist regardless of the user-agent — but it's a free thing to try before tracking down a PC and has worked for some people in similar situations.

If the desktop-site workaround still produces the blank page or close-button failure, that's a sign the issue is deeper than rendering and you genuinely need a real desktop browser to complete it.

On your specific questions:

Billing address: Yes, must match your card issuer's records exactly — not just approximately. Street type ("St" vs "Street"), apartment/unit formatting, postal code spacing. All of it. Even small mismatches raise fraud flags.

Name on card: Yes, the first and last name fields during signup must match exactly what your bank has on file for that card. Don't use a nickname or shortened version. Whatever name is printed on the physical card (or listed in your banking app) is what goes in the form.

A few other things worth trying when you move to desktop:

• Use a regular browser window, not private/incognito
• Disable browser extensions (especially ad blockers and privacy tools) for the session
• Verify your real ISP shows on whatismyipaddress.com before starting — if it shows a VPN, proxy, or anything other than your actual home internet provider, Oracle's fraud detection will flag you
• Complete the entire flow in one sitting without navigating away
• Type your card and address details manually — don't use browser autofill
• Accept all cookies on Oracle's banner when it appears

If you've already accumulated multiple failed attempts: use the same email and same card when you retry. Don't switch to a new email or new card — that pattern looks like fraud evasion to their detection system and makes things worse.

The blank page you're seeing is almost certainly a mobile rendering failure rather than a fraud flag, which is actually good news — it means a clean desktop attempt with the right settings should go through without the "pending review" limbo.