Grameenphone, Robi & Banglalink Phishing: How to Spot Fake Recharge and SIM Swap Scams

Bangladesh has over 180 million mobile subscribers, with Grameenphone, Robi, and Banglalink serving the vast majority. These operators are woven into daily life — from making calls and browsing the internet to mobile banking and government services. That ubiquity makes carrier customers prime targets for phishing attacks.

Scammers impersonate operators through SMS, phone calls, and social media to steal money, hijack accounts, and commit identity theft. Here is what you need to know.

The Most Common Carrier Scams

1. Fake Recharge and Data Bonus Offers

You receive an SMS: "Congratulations! GP is offering 10GB FREE data. Dial 1215555# now to claim." Or you see a Facebook post: "Robi Eid Special — 50GB free for all prepaid users. Click here to activate."

These fake offers lead to premium-rate numbers that charge your balance, phishing websites that steal your credentials, or malicious apps that infect your phone.

How to identify fake offers:

• Legitimate offers come from official short codes (like GP's 5000 series) — not random numbers
• Real promotions are listed on the operator's official website and app
• No operator will ask you to click a link in an SMS to claim data
• If an offer sounds too generous, it is fake

2. SIM Swap Attacks

This is one of the most dangerous scams. A criminal visits a carrier customer service center or authorized dealer with a forged NID or convinces a corrupt employee to issue a replacement SIM for your number. Once they have the new SIM:

• Your phone loses signal immediately
• They receive all your SMS messages, including OTPs
• They can reset passwords for bKash, Nagad, email, and banking apps
• They drain your mobile wallet and bank accounts within minutes

SIM swap fraud has been rising sharply in Bangladesh because so many critical services rely on SMS-based verification.

3. "Your SIM Will Be Blocked" Calls

A caller claims to be from Grameenphone, Robi, or Banglalink and says your SIM is about to be blocked due to "NID verification failure" or "regulatory compliance." They ask you to provide your NID number, date of birth, or SIM registration details to "prevent blocking."

This is always a scam. No operator will call you and threaten immediate SIM blocking while demanding personal information over the phone.

4. Fake Customer Support Numbers

You search Google or Facebook for "GP customer care number" and find a number that is not the official one. You call it. The person on the other end sounds professional and asks for your account details, PIN, or OTP to "resolve your issue."

5. Carrier App Phishing

Scammers create fake versions of MyGP, My Robi, or My Banglalink apps. These look identical to the real apps but are designed to steal your login credentials, SIM information, and sometimes even banking data.

Scam Types at a Glance

Scam Type	Targeted Operators	Risk Level
Fake Recharge Offers	GP, Robi, Banglalink	High
SIM Swap	All operators	Critical
"SIM Blocking" Calls	GP, Robi, Banglalink	Very High
Fake Support Numbers	All operators	High
Fake Carrier Apps	GP, Robi, Banglalink	High

How to Protect Yourself

Against Phishing

1. Never dial codes or click links from unsolicited SMS — Check offers directly in the official app
2. Verify customer support numbers only from the operator's official website
   • Grameenphone: 121 (from GP number) or 01711-282-121
   • Robi: 123 (from Robi number) or 01819-400-400
   • Banglalink: 121 (from Banglalink number) or 01911-304-121
3. Download carrier apps only from Google Play Store — Never from links in SMS or Facebook
4. Do not share your SIM serial number (ICCID) with anyone
5. Be suspicious of any call claiming your SIM will be blocked — Hang up and call the official number

Against SIM Swap

6. Set a SIM PIN through your phone settings — This prevents unauthorized SIM use
7. Register a biometric lock with your operator if available
8. Monitor your phone signal — If you suddenly lose network in an area with coverage, call your operator immediately from another phone
9. Enable app-based two-factor authentication (like Google Authenticator) instead of SMS-based OTPs for critical accounts
10. Keep your NID information secure — SIM swap often starts with stolen NID data

What to Do If You Suspect a SIM Swap

Time is critical. Act within minutes if possible:

1. Call your operator immediately from another phone to report the SIM swap
2. Lock your bKash and Nagad accounts by calling 16247 (bKash) or 16267 (Nagad)
3. Contact your bank to freeze online banking access
4. Change passwords for email, social media, and all accounts linked to your phone number
5. File a GD at the police station with all relevant details
6. Visit the operator's customer service center with your original NID to reclaim your number

Share Carrier Account Details Safely

When you manage a family mobile plan or need to share your account details with someone paying your bill, avoid sending SIM serial numbers, account PINs, or registration details through WhatsApp or regular SMS. Use LOCK.PUB to create a password-protected, self-expiring link. The recipient enters a password to view the information once, and it disappears — no trace left in any chat history.

Warning Signs to Watch For

• Unsolicited SMS with links or USSD codes — Do not interact
• Calls demanding personal information to prevent SIM blocking — Hang up
• Sudden loss of mobile network signal — Possible SIM swap, act immediately
• Carrier apps available outside official app stores — Malicious, do not install
• Social media posts with unbelievable data or recharge offers — Always fake

Conclusion

Your mobile number is tied to your identity, your finances, and your digital life. Scammers know this, and they target Grameenphone, Robi, and Banglalink customers because the payoff is high. Protect yourself by verifying everything through official channels, securing your SIM with a PIN, and never sharing personal information over the phone.

For secure sharing of sensitive account details, visit LOCK.PUB to create encrypted, password-protected links that expire automatically. Stay vigilant and keep your number safe.