MakeMyTrip India — Concerns on my privacy

I have concerns on my data privacy with MMT. I am trying to delete the account, but there are no option to do that in website.

I tried calling and reaching to all the numbers mentioned in website for this, however none of them are working.

The major concern that i have is, MMT login through gmail id. I tried changing settings in google account. But in-spite of removing access multiple times, the settings are changing on its own.

Need an urgent resolution on this.