- Scam
Community reports for 0403 453 921 (0403453921): Scammers requesting PayID deposits for items on Facebook Marketplace without proof of ownership.
Facebook Marketplace Scam Reports for 0403 453 921
Two contributors have reported suspicious activity from 0403 453 921 (also written as 0403453921) involving Facebook Marketplace transactions. The reports describe callers attempting to solicit payment before providing legitimate proof of item ownership or identity, a common tactic in online marketplace fraud.
This Optus mobile number has been flagged by contributors who engaged directly with callers claiming to be sellers of items listed on Facebook Marketplace. The pattern suggests coordinated activity targeting buyers through the platform, with callers pushing for immediate payment via PayID without completing standard verification steps.
What Callers from 0403 453 921 Demand
One contributor reported receiving a call from 0403453921 where the caller requested a $500 PayID deposit without providing any proof of ownership or identity. The caller did not provide transaction details, seller credentials, or any means for the contributor to verify legitimacy before payment.
The second report describes similar scam activity linked to Facebook Marketplace, indicating a pattern where callers bypass normal marketplace safeguards by moving communication off-platform to phone calls, then requesting direct bank transfers.
Call Patterns and Channel
Both reports of 0403 453 921 came from contributors who answered the call directly, suggesting the scammers actively pursue phone contact rather than relying on in-app messaging. This approach allows them to apply real-time pressure and avoid Facebook's fraud detection systems.
The activity on 0403453921 appears recent, with reports spanning late December 2025 and mid-February 2026, indicating ongoing use of this number for marketplace fraud.
What to Do If You Receive a Call from 0403 453 921
If 0403 453 921 calls you about a Facebook Marketplace item:
- Do not: Transfer money via PayID or any direct payment method before verifying the seller through official marketplace channels
- Do not: Provide personal information, bank details, or identification documents over the phone
- Do: Hang up immediately and verify the listing directly on Facebook Marketplace using the item link
- Do: Check seller ratings, reviews, and profile history on Facebook before any transaction
- Do: Use Facebook Marketplace's built-in payment protection rather than direct bank transfers
- Do: Block 0403453921 if the caller pressures you or becomes aggressive
How to Report 0403 453 921
If you receive a fraudulent call from this number, report it through multiple channels:
- Facebook: Report the marketplace listing or seller profile directly within the app
- ACMA (Australian Communications and Media Authority): Lodge a complaint at acma.gov.au about unsolicited or fraudulent calls
- Scamwatch: Report the incident at scamwatch.gov.au with details of what was requested
- ReportCyber: If payment was made or personal data compromised, report at cyber.gov.au
- Reverseau: Contribute your experience with 0403 453 921 to help other Australians identify this number
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What Our Users Reviewed
Bloke asking for a $500 PayID deposit without proving he owned the item
Scammer from Facebook Marketplace
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WRITE A REVIEWFrequently Asked Questions
What should I do if 0403 453 921 calls about a Facebook Marketplace item?
Hang up immediately and do not provide any payment or personal information. Verify the listing directly on Facebook Marketplace using the item link, and check the seller's profile for ratings and history. Never transfer money to someone who calls you off-platform claiming to be a Marketplace seller. If 0403453921 calls again, block the number.
Why did the caller from 0403453921 ask for a PayID deposit without proof?
This is a classic scam tactic to bypass Facebook's buyer protection systems. By moving the transaction off-platform and requesting direct payment, the scammer avoids detection and makes it harder for you to dispute the charge or recover money if the item never arrives.
Is 0403 453 921 actually a Facebook Marketplace seller?
No. The reports indicate 0403453921 is being used by scammers impersonating sellers on Facebook Marketplace. Legitimate sellers use the in-app messaging system and accept payment through Facebook's official methods, not direct PayID transfers to unknown numbers.
What payment methods should I use on Facebook Marketplace instead of PayID?
Use Facebook's official checkout system whenever available, which includes buyer protections. If buying locally, meet in a public place and inspect the item before handing over cash. Never transfer money via PayID, bank transfer, or cryptocurrency to someone calling from 0403 453 921 or any unsolicited marketplace contact.
Should I block 0403453921 if they call me?
Yes, block 0403 453 921 immediately after the call. This prevents the scammer from contacting you again. If they've already called, also report the number to ACMA at acma.gov.au and to Facebook directly through the Marketplace reporting feature to protect other buyers.
What information did the scammer already have about the contributors who reported 0403 453 921?
The reports don't specify what personal information the caller possessed, but the fact that they contacted contributors directly suggests they may have obtained names or phone numbers from Facebook Marketplace listings or previous interactions. Never assume the caller is legitimate based on any information they mention about you.