AirPods Pro 2: Redeem 6 months Apple Music promo again?

I recently bought a new pair of AirPods Pro 2 and have been using them for a little over one month, but I haven’t activated the promotion that gives 6 months of Apple Music yet. How can I claim this offer?

Before this, I already had another pair of headphones that was activated and I already received this promotion. I would like to ask whether it is possible to receive the same 6-month Apple Music promotion again on the same Apple ID with this new pair of AirPods.