I was having an issue where my iPhone randomly decided to delete a bunch of my contacts so I brought it to this store. Luckily the staff was super helpful & showed me how to set my phone to where all my contact were specifically saved to my device. Another tip is the turn off all the linked e-mail & calendar contacts so they don't show as doubles in you phone. I'm always on the strip so I'm glad to know there is a central location I can bring my phone to for any future issues, although I hope there won't be any