The phones are sim free as far as I know.
Please bring the following items with you:
Proof of purchase - a print out of this email or of your receipt, or the text message.
Your payment card - for your protection against fraud, we cannot release your purchase without seeing your payment card. If you've paid entirely by gift vouchers, gift card or by PayPal, then please bring a photo ID, which must be your passport or photo driving licence.
If someone else is collecting the goods on your behalf, they must present your proof of purchase, as well as their own photo ID (passport or photo driving licence only).