I got this info from the Game website under the section "Returns Policy"...
Any software may be returned for refund or exchange within 10 days of the despatch date.
Merchandise must be in the original box or package with all accessories and manuals in saleable condition with proof of purchase. We reserve the right to restrict returns to unopened or defective products at our discretion.
Defective merchandise will be replaced with a like item, upon return of the defective merchandise.
We will issue a full credit via your payment method for the price of any item you return that meets the above conditions.
This does not affect your statutory rights
You can return goods to your nearest GAME Store (check our STORE LOCATOR to find your nearest GAME Store).
Please note, you must return any item using the original invoice supplied with your product and have your credit or debit card used for the original purchase with you for the store to process the refund.
International customers please be aware that we will be unable to refund any postage and packing costs incurred in returning a product to us under our 10 day return policy.
Please note items bought in bundle deals, such as 2 for £30 or hardware and software packs, if returned separately will result in the full price being charged for other items in the special offer and the refund adjusted accordingly.
Our 10 Day Returns policy is not available for DVDs and may be restricted against some titles that are exclusively for online play. For further details please contact Customer Services
You can return goods directly using the postage-paid label you will receive with your goods. If the label is damaged in anyway, the address for returns is:
Central Distribution Centre
PO BOX 3800
Before you return a product to us directly, please contact [email protected] for a Returns Authorisation Number.