A 10-week delay is longer than what most investors would reasonably expect for a straightforward dematerialization, especially when all documents were submitted correctly. Since you’ve already contacted Cowrywise, Meristem, and the registrar, the next step is to escalate formally and create a documented trail.
What I would do next
1. Demand written confirmation from Meristem
Meristem is the stockbroker handling the dematerialization, so they should be able to provide:
Date the application was submitted to the registrar.
Dematerialization reference number (if any).
Acknowledgement copy or dispatch evidence sent to the registrar.
Current status of the request.
Send an email and insist on a written response rather than phone conversations.
2. Copy all parties in one email
Write a single email addressed to:
Cowrywise
Meristem Securities
Greenwich Registrars & Data Solutions
State:
Shareholder name.
Wema Bank share certificate details.
Date application was submitted.
That 10 weeks have elapsed without resolution.
That the registrar has requested an acknowledgement copy which has not been provided.
Request a response within 5 working days.
3. Escalate to the broker’s compliance unit
If Meristem does not respond satisfactorily, ask specifically for:
Compliance Officer.
Head of Customer Experience.
Managing Director’s office.
A compliance complaint often receives quicker attention than ordinary customer service enquiries.
4. Escalate to the regulator
If another week passes without progress, file a formal complaint with the Nigerian capital market regulator:
sec.gov.ng⁠�
Provide:
Copies of emails.
Share certificate details.
Evidence of submission.
Names of Cowrywise and Meristem representatives contacted.
SEC typically expects capital market operators to respond to investor complaints.
5. Contact Wema Bank Investor Relations
Since these are Wema Bank shares, you can also notify:
wemabank.com⁠�
They may direct the registrar to review the matter or advise on any known issues affecting share transfers.
Possible reasons for the delay
Common causes include:
Signature mismatch.
Name discrepancy between certificate and CSCS account.
Missing registrar acknowledgement.
Backlog at the registrar.
Broker failing to forward documents promptly.
Unresolved shareholder verification issues.
The fact that the registrar asked for an acknowledgement copy suggests they may not have complete visibility of the submission, which is why obtaining proof from Meristem is now critical.
Suggested approach
At this stage, stop going back and forth individually. Send one escalation email to all three parties (Cowrywise, Meristem, and Greenwich) requesting:
Proof of submission.
Current status.
Expected completion date.
If there is no meaningful response within 5–7 working days, escalate directly to

Subject
Escalation: Outstanding Dematerialization of Wema Bank Plc Shares – Request for Immediate Resolution

Dear Sir/Madam,

I am writing to formally escalate the prolonged delay in the dematerialization of my Wema Bank Plc shares.

My dematerialization application was submitted through Cowrywise, which engaged Meristem Securities as the stockbroker handling the process. As of today, over ten (10) weeks have elapsed since submission, yet I have not received confirmation of completion, a clear status update, or any indication of when the process will be concluded.

During my follow-up efforts, I have been repeatedly referred between Cowrywise and Meristem without receiving a definitive response. I also contacted Greenwich Registrars & Data Solutions directly and was informed that an acknowledgement copy or evidence of submission is required. Unfortunately, despite multiple requests, I have been unable to obtain this document from either Cowrywise or Meristem.

I respectfully request the following:

1. Confirmation of the current status of my dematerialization request.
2. A copy of the acknowledgement, submission receipt, or any evidence showing that my application was forwarded to the registrar.
3. Clarification of any outstanding issues, deficiencies, or discrepancies affecting the process.
4. A definite timeline for completion of the dematerialization.

I believe ten weeks is more than sufficient time for an update or resolution, and the continued lack of clarity is causing significant inconvenience, particularly as I intend to rebalance my investment portfolio and require access to these shares.

Kindly treat this matter as urgent and provide a written response within five (5) working days of receipt of this email.

Should I not receive a satisfactory response within this period, I will be compelled to escalate the matter through the appropriate regulatory channels, including the Securities and Exchange Commission (SEC), while providing a full record of my correspondence and follow-up efforts.

I appreciate your prompt attention and look forward to an immediate resolution.

Yours faithfully,

[Your Full Name]
[CSCS Account Number, if applicable]
[CHN Number, if applicable]
[Phone Number]
[Email Address]