TalkTo is a free app (currently only available for iPhone but should be for Android soon too) as well as a website where you don't have to make a phonecall to contact a store, restaurant, or even book appointments that accepts questions by texts. I believe that for businesses which do not accept text questions a representative will call them in your place and relay the information for you. It's remarkably convenient and a lifesaver for people who have fears concerning the phone. I used it once for the first time the other week from their website and it worked fantastic.
Here is the Tumblr post where I first saw it with a more detailed explanation.
And here is the website itself: http://talkto.com/