Can I Have Multiple Brokerage Accounts With Afrinvest and InvestNaija in Nigeria?

Yes, you can legally have multiple brokerage accounts in Nigeria. There is nothing wrong with having accounts with both afrinvest.com and investnaija.com
But the key issue here is not the brokerage account itself — it is the CSCS/CHN structure.
Here is what is happening technically:
Your CHN (Clearing House Number) and CSCS account are usually tied to the stockbroker that created them.
Some brokers allow account portability/linking.
Some fintech-style platforms prefer generating and managing their own custody structure internally.
That is why InvestNaija is telling you they cannot use the Afrinvest-generated CHN/CSCS on their platform.
That does not necessarily mean anything fraudulent is happening. It is often a platform architecture/custody limitation.
Now to your real question:
Should You Open Another CSCS Through InvestNaija?
You can, but you need to understand the implications.
If You Create Another CSCS/CHN:
You may end up with:
two brokerage accounts,
two CSCS accounts,
two CHNs,
separate portfolios.
Example:
Zenith shares bought via Afrinvest stay under Afrinvest-linked CSCS.
UBA shares bought later via InvestNaija stay under InvestNaija-linked CSCS.
That is allowed in Nigeria.
But it creates:
more complexity,
more registrar records,
more dividend mandate management,
more reconciliation issues later.
And from your recent dividend experience, you can already see how fragmented records can become stressful.
Important Clarification:
“Is it the same stocks posted on Afrinvest that will be posted on InvestNaija?”
Yes.
Both platforms access the same:
Nigerian Exchange Group market,
same listed companies,
same market prices.
So:
Zenith Bank Plc shares are Zenith shares everywhere.
GTCO Plc is the same stock everywhere.
MTN Nigeria Communications Plc is the same stock everywhere.
The difference is:
platform interface,
fees,
execution speed,
customer support,
settlement efficiency,
research tools,
custody structure,
dividend handling.
Not the actual stocks.
My Practical Recommendation
Given your experience already:
Keep One Main Broker First
At your current stage, it is cleaner operationally to:
choose one primary broker,
maintain one major CSCS/CHN,
centralize dividends and records.
This reduces:
registrar confusion,
e-dividend complications,
forgotten holdings,
account reconciliation stress.
Which One Would I Lean Toward?
Based on what you described:
Afrinvest
Pros:
Established traditional broker
Strong institutional background
Direct market credibility
More mature investment infrastructure
Cons:
Slow onboarding/customer support (your experience confirms this)
InvestNaija
Pros:
Easier modern UI
Faster retail-focused onboarding
More beginner friendly
Cons:
May rely on internal custody/account structures
Support and infrastructure maturity may not match older brokers
What I Would Personally Do In Your Situation
Since Afrinvest already generated your CHN/CSCS:
I would likely:
keep the Afrinvest CSCS as the primary account,
avoid creating another CHN immediately,
test Afrinvest with a small transaction first,
monitor:
trade execution,
statements,
dividend handling,
responsiveness.
Then only open another fully separate CSCS later if:
you want diversification across brokers,
or one broker becomes unreliable.
One Very Important Thing Most Beginners Ignore
The broker itself is less important than:
proper CSCS registration,
accurate registrar records,
correct e-dividend setup,
good documentation,
long-term consistency.
Many Nigerian investors run into problems years later because they opened:
multiple CHNs,
multiple registrar records,
inconsistent names/bank details,
scattered holdings.
Then dividends and bonus shares become difficult to trace.
Your recent Zenith dividend issue is already showing why simplicity matters.
So at this stage:
one solid broker,
one clean CSCS structure,
one properly linked bank mandate,
is usually the cleaner approach.