Free Earbuds Offer with new Samsung A54

[JJFGB]

I purchased a Samsung A54 which was supposed to come with free earbuds with a code to be sent out after 30 days.  I have not received a code despite trying to speak to somebody at O2 who can help and failing miserably.  It would appear that the offer had to be redeemed by 5th July, a bit difficult when you haven't received the voucher.

Given that chat and phone don't seem to work, what is my next port of call before cancelling all my services for breach of contract?

[MI5]

@JJFGB 

Message O2 on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)

[JJFGB]

I was able to eventually speak to customer services who promised a new code within 48 hours.  It never arrived.
Called back today to be told - take it up with Samsung. The offer was on the O2 website, itwas an integral part of my purchase from O2 and under the Consumer Protection Act, my contract is with O2.  Samsung say speak to O2.

Wish I never had joined O2

[MI5]

@JJFGB 

It's never been a Samsung offer.

[JJFGB]

You know that, I know that and O2 know that.  Clearly O2 don't care as they have my money now anyway.
I shall be cancelling this contract under the Consumer Protection Act as the earbuds offer was an integral part of why I chose that device and therefore they have failed to fulfil the contract.  I will move all my contracts away from O2 as soon as they expire.  

[MI5]

Don't blame you @JJFGB