Hello Melanie, we are sorry it may not able to reach you by 27th July. (There is only 2 business days left before 27th July).
If you order the wig now (about 4-6 days prepare wig time) and use the fastest shipping method (Premium Express, about 2-3 days shipping time to Hong Kong), it will reach you around end of July.
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it. :)