Hi @Penguinkels
This is not O2 you are speaking to but a customer forum.
For your reference, please see the link below for the terms and conditions re the offer of a free Huawei tablet:
According to the T&Cs you should have received a leaflet containing the URL you would need to apply for the free tablet. If this has been thrown away or not included in the bag containing your new phone, you can certainly contact Customer Services
http://www.o2.co.uk/contactus, between 8-8:30am being the best time to avoid a long wait on hold; to see if a spare leaflet can be sent to you. Though I doubt this will be possible due to a limited supply of tablets, but it's always worth a try.
If not, and you only upgraded to get a free tablet, then cancel the upgrade and return the phone.
Good luck and welcome to the forum 
Hi @Penguinkels, did all the information @Glory1 and @MI5 shared above help you understand better how to claim this offer? Do you have any additional questions around this?
to the forum!
→ Access for You: Registration - Find out how to register for our Access for You service.
→ Want to chat with other fellow-minded members? Head to our Off-topic section for some interesting chit-chat.
→ Check out our Priority board for tickets & offers updates, and to discuss all things Priority-related!
→ Welcome to O2! - New to O2? Find out all you need to know to get started!
If you'd like to take part, why not register? 
Go here to claim your free tablet https://www.huaweiredemption.o2.co.uk/
