1.   It also has experienced some billing problems.

2.   As in the KPL case, the Missouri Gas billing problem concerns the cost of gas, which is the wholesale cost of natural gas plus transportation costs.

3.   Assistant US Attorneys Victor Wild and Diane Freniere said the case relied on patients who reported billing problems to Medicare.

4.   At the same time, Xerox also consolidated many back-office operations last year, causing backlogs in accounts receivables and billing problems.

5.   Billing problems involving mileage charges were discovered by the company and reported to the government, she said.

6.   It consolidated many back-office operations last year, causing backlogs in accounts receivables and billing problems.

7.   Oxford Health Plans Inc. shares lost more than half their value after the company surprised investors with its warning of a third-quarter loss due to billing problems.

8.   The company formed a task force last month to analyze billing problems and recommend changes.

9.   The network grew much faster than expected, which led to billing problems for subscribers.

10.   The service, which has no fee, allows American Express card holders to review current charges, ask questions or report billing problems.