Tsim — tsim did not worked for india calling

Address:	102, Sarvesh, Off Bhawani Shankar Rd., Dadar (W), Mumbai 400 028, India., 400028
Website:	www.tsim.in

I had visited Europe(london, paris and switzerland) from 1st june 2019 to 11th june2019 for I have purchased this TSIM from the company below:-

TSIM Communication Services Pvt. Ltd.
Phone: +[protected], Fax: +[protected]
Email: [protected]@tsim.in, GST Number: 27AAECT2476J1Z0
Address: 102, Sarvesh, Off Bhawani Shankar Rd., Dadar (W),
Mumbai 400 028, India.

the Details of my sim card is as below:-
Activation Date:[protected]
Sim Serial No.[protected]
Sim Phone No. [protected]
[Order no #154790] (May 22, 2019)
Unlimited Europe SIM Card - 2GB (EU Only - Economy)

this sim card did not worked for making calls to my home in India for which i had purchased the sim.
So i had to make international calls to India via outside pay booths, which costed me around Rs 5000. It was a total harrassment as there customer care people also did not respond and did not reply on my mail.

kindly help me out as some of my friends also experienced the same harrasment from TSIM company . this company do not provide services as they promise and can be related to doing fraud with customers.