Welcome to the community and thanks for taking the time to get in touch with us about the rewards voucher
We can certainly help get this looked into for you!
In order for me to look into this further for you I need you to confirm some information for me.
If you could send a private message to me with your name and full address and the email address the vouchers should be sent to, I can then flag this to the teams for you and will get back to you as soon as I can with their updates.
To PM me, simply:
Click on my forum name on the left of this post.
Go to my profile.
On the right had side, select the 'send me a message'option.
Once you've popped those details to me I'll be back in touch to confirm what we have done for you and what to expect next