Do i need to fill E-Dividend mandate again after increasing the numbers of my shares?

No—you do NOT need to fill the e-Dividend mandate again just because you bought more shares.
✅ How it actually works
Your e-dividend registration is tied to:
Your name
Your CSCS/CHN (Clearing House Number)
Your bank account details
Once it’s properly set up with the registrar for a company like Beta Glass Plc:
All dividends from that company will automatically go to your bank account—regardless of how many shares you hold.
📈 After buying more shares
If you increase your holdings:
You don’t need to do anything extra
The registrar simply calculates:
Dividend per share × total shares you now own
👉 Payment goes to the same bank account already registered
⚠️ When you MAY need to update it
You only need to fill or update your e-dividend mandate again if:
You change your bank account
Your name has discrepancies (BVN mismatch, spelling issues)
You used different names/CSCS accounts to buy shares
You never completed it properly the first time
❗ Important check (don’t skip this)
Even though you’ve filled it before, confirm:
Your CHN is correctly linked
Your bank details are valid
Your mandate is approved/active
👉 You can confirm via your broker or registrar
🧭 Practical advice
Since you’re actively investing now:
Keep one consistent CHN
Use same name across bank + brokerage
Avoid multiple identities (this causes dividend issues)
🎯 Bottom line
Buying more shares = more dividend
No new e-dividend form needed