It’s CST service where it allows the beneficiary escalate to the CST ,if it was closed and not resolve it within 5 days you can escalate it to CST.
Through the service provider’s different call centers
if it was closed and not resolve it within 5 days you can escalate it to CST by fetching reference NO. which given by them.
In case the complainant is dissatisfied with the solution of the service provider, you can escalate the complaint to CST
