Microsoft — inability to uninstall chromium from my device

Dear sir,

Yesterday chromium was installed on my device without my knowledge .I tried to uninstall it but every time It showed that the process was being processed but in the end there was no positive response and it started to appear on my home screen and gave me trouble .I am requesting you to reply b ack to me as quickly as possible in how to solve my problem .Otherwise I have to contact your customer care service for further details.

Regards,
Kaarthikeya Lakshman