The application has been blocked due to exceeding the limit

Though I have not exceeded the limits. I’m getting this error. what is the problem.
app id: C963CFD9-3463-3CE1-FFF6-9EA7788DE200
<com.backendless.services.billing.ApiCallsBlockedException: The application has been blocked due to exceeding the limit

edit : I have updated my payment information to create a solution. the problem continues

Answered here: http://support.backendless.com/t/though-i-have-not-exceeded-the-limits-im-getting-this-error-what-is-the-problem