I want to retrieve my puk number 08108525431

Hi Daramola, PUK retrieval is now available via USSD channel. You can dial the code from any MTN number and receive your PUK on the number.
To retrieve your PUK via USSD, dial *123*7*3# and follow the response.
You will be asked these questions:
1 Mother's maiden Name
2 Date of Birth (DD/MM/YYYY)
3 Frequently Dialed Number 1
4 Frequently Dailed Number 2
5 Last Recharge Amount.
If you are unable to answer these security questions, you will receive SMS to call 180.