Kindly follow the below steps on your Paga account to make an account verification request and generate an ID.
 

Step 1: Log in to your account, 

Click on the Unverified link underneath your business name and follow the process.
Input this account details
Bank Name
Account Number
BVN:
Complete and save it.
 

Step 2: Generate merchant ID
Click on the Payment channel
Click on setup payment channel
Complete the request.
(edited)
Merchant ID would display once it is approved