So I've got an update for you guys but it's not very helpful. I have responded to them to tell them it's utter rubbish
Plus i'm on PS3 not PS4...
"Thanks for your recent call regarding Pro Evolution Soccer 2015 on PlayStation 4 (PS4). I understand from our contact that you were unable to access this bonus content after release.
Please note The first time loading myClub game mode you will be required to complete a tutorial; after the tutorial is complete, the Bonus items will appear in the inbox located in the bottom right corner of the “Club House” menu page for myClub.
If you click on the message icon in the attachment you will be taken to voucher redemption page with your voucher code pre-populated
(so no need to type it in). All you need to do is click Confirm as prompted.
We are still working with the publisher to resolve any further issues with this content. I'd be grateful if you could confirm if this is resolved or are still experiencing an issue?
Please accept our apologies for the delay in accessing this content. If you encounter any issues with your copy of Pro Evolution Soccer 2015 please contact PlayStation Support using the contact details below or by replying to this e-mail.
Thanks,
Debbie
Management Team / Product Specialist
PlayStation Support"