Apple Music 6 months free offer advice

[Macc2020]

I got a email from O2 last week saying if i upgraded my tariff then i could get Apple music free for up to 6 months.

so i did that last week and checked the T&C for the offer to make sure i moved to the right tariff but i still have not got the code to claim the free Apple music.

so what do i have to do now that i have changed my tariff?

i have checked my online O2 account and can not see anything to say i have got that offer.

please help.

[MI5 · Accepted solution]

@Macc2020 

You should get a code emailed to you after 7 days.

If not, you'll need to call customer service.
Numbers here Guide: Coronavirus Community Help and Support 
When it comes to the reason you are calling stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say "Upgrade", "Lost/Stolen" or "Fraud" if you have to, to get put through to someone.
8.00am is the best time to call if you can.