AT&T Ditches $20 Unlimited Data for PAYG Users. AT&T unlimited Data GoPhone. AT&T has reportedly decided to discontinue the $19.99 unlimited data plan it offered for Pay As You Go customers.. AT&T has reportedly decided to discontinue the $19.99 unlimited...

can only be used in the UK; any roaming data use will be charged at the standard PAYG roaming charges. The offer is available on all PAYG tariffs....