How to activate 3 months Apple Music offer on activating new device?

Do you meet the eligibility requirements? For example if you previously used a free trial or subscribed before you may not be eligible.

• Offer is available for new Apple Music subscribers with an eligible device for a limited time only. Offer is for individual Apple Music subscriptions only
• One offer per eligible device. Only one offer per Apple Account, regardless of the number of eligible devices you purchase.

https://www.apple.com/promo/pdf/US_T_Apple_Music_Promo_Terms_3_month.pdf

VolodymyrRudyk wrote:

I had an active individual Apple Music subscription when I activated my new iPhone. Maybe that's the problem?

Yep, that would be it. You are no longer a new Apple Music subscriber.

mathi261 wrote:

I want to activate Apple Music

How will I do it please

Add a payment method to your Apple Account - Apple Support

Subscribe to Apple Music - Apple Support

I want to activate Apple Music

How will I do it please

mathi261 wrote:

How will I do it please

No