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Given a text, write a compressed version of it in a single sentence.

If you haven’t already enrolled, sign up for this plan that saves you money on your AT&T Universal Card calls. You get the low rate of 25 cents a minute anytime, anywhere in the U.S. on all your AT&T Universal Card calls when you make the call yourself by dialing 1 800 CALL ATT.
Output:
If you have yet to be enrolled, sign up for this plan that saves you money on your AT&t Universal Card calls. You get a rate of 25 cents a minute anytime in the U.S.