S8 Ultra - £150 trade in Offer - Advice needed please

[Trevos]

So i ordered, and today received the S8 ultra. 
A leaflet was attached advertising the £150 trade in bonus, but with no clear instructions.

I don't have anything to trade in at the moment - but thinking i could purchase a cheap device 2nd hand and trade that in so i get the bonus.

But nowhere can i find what the process is to trade in a device.

As i purchased a tablet, does it have to be a tablet, or can it be a mobile?
I guess i process an order on the O2 refresh website, but how will it know that it relates to my S8 ultra order for the bonus? 

Any advice would be much appreciated. 

Thank you

[MI5 · Accepted solution]

@Trevos 

If you are an Eligible Customer who has made a Qualifying Purchase in accordance with the Terms of the Offer, please contact us on 0345 505 0202 or email: info@o2recycle.co.uk to discuss further.

[Trevos]

Many thanks, will fire off an email. 

[MI5]

Good luck