Hi,
We are sorry that you are having difficulty obtaining your National Insurance number.
The letter to confirm your NINO is usually sent out automatically about 4 months before your 16th Birthday to the address we hold on our records for you at the time.
This will be taken from Child Benefit records if your parents were claiming Child Benefit for you.
If this was not the case, you should contact our NI Helpline 0300 200 3500 who will make a trace for your NINO and then take any appropriate action, for example they may need to complete a Junior registration or may ask you to complete a form CA5403 (also available online) if they need more details for you to apply for a NINO.
This is the link for information to apply for a NINO:
Apply for a National Insurance number
Thank you.