Complaint regarding job from Phenix data outsourcing

I have Paid registration fees of 4,000 rupees on September 11 for manual form filling job. But the company people(Phenix Data Outsourcing) send me agreement on 11th September and then i didn’t receive my courier. Then the company people said that first they send courier on 18th September but i didn’t receive it. Later they told that they return the courier on 27th September. But i didn’t receive yet. So they mentioned it is an courier side issue. SO they finally agreed to refund my money but now they are not able to respond to my mails or calls. SO can you kindly work on my issue and kindly process my refund soon.

Thank you