Swiggy — complaint about account issue

Address:

Indore, Madhya Pradesh, 452001

Someone else is using my swiggy account and he changed my mobile number in my account.
I complaint about the same to swiggy via mail last week. Got many mails in response but they are telling that my account have to be deactivated permanently. I told them to do that but i got no response in terms of issue.
They are taking too much time where i know that they have to follow a small step to resolve the problem. I am getting mails for orders from my account continuously.
It's been around one week that is why i have to file complaint here.
Kindly help me out from this situation