Who I have the same questioned this topic

I have 4 lines under my account and tried multiple times to use the apple music 6-month free trial promotion.

But every time I try to add it, it gives me "Oops, there seems to be a problem. Try it again later" message.

I chatted with the agents and they say that they cannot activate it for me (I don't know why)

and I don't want to waste the 6 month trial of it.

- I am currently not using apple music

- I tried different browsers

- I tried day/night at different time

How do I add it? Any suggestions?