Purchasing a product from the Apple Online Store always has a return period allowing you to return the product should you have a issue or change of mind.
With Christmas gifts in mind Apple are extending this return time for more than cover purchases before Christmas:
Items purchased at the Apple Online Store that are received between 1 November, 2014 and 25 December, 2014, may be returned through 8 January, 2015.
Please note that all other terms and conditions provided in the Apple Online Store Sales and Refunds Policy are still applicable with respect to such items purchased. All purchases made after 25 December, 2014 are subject to the Standard Return Policy.
You still have time to make your purchases at the Apple Online Store with all delivery information being provided at the shopping cart during your purchase.
Apple Online Store
Shop Mac (including MacBook, iMac, Mac Mini & Mac Pro)