The team balance is only one funding check. The number, its customer, and its project can each have a monthly spending limit. Credits reserved or protected for higher-priority demand can also be unavailable to this charge.
Read the specific billing reason and inspect the applicable limits in the native number, customer, or Usage controls. Raising one limit does not bypass another or create credit. An owner or administrator can review the intended cap and priority. If all shown blockers are resolved but suspension persists, send support the number reference and time.