What does a phone charge "38.93 CR mean?

Just got my last bill from AT&T post paid account and it says Total new charges 38.93CR. THEN , it actually says "Payment not required"...above it..Th

Just got my last bill from AT&T post paid account and it says Total new charges 38.93CR. THEN , it actually says "Payment not required"...above it..Then, on the portion of the bill you send in by mail it says" Payment not required , then lists the 38.93CR . The rest of the bill looks normal...Anybody have a clue whether Im supposed to TAKE MY LUNCH? or RIDE THE BUS?????....Thanks

or:Just got my last bill from AT&T post paid account and it says Total new charges 38.93CR. THEN , it actually says \"Payment not required\"...above it..Then, on the portion of the bill you send in by mail it says\" Payment not required , then lists the 38.93CR . The rest of the bill looks normal...Anybody have a clue whether Im supposed to TAKE MY LUNCH? or RIDE THE BUS?????....Thanks

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