Idea Cellular — invalid 21 rs. deducted, two times

This is to register an invalid deduction of 21 rs. From my idea number twice in a row.
Even after i activated dnd in my number.
One at 29 march 2020, at 10:50 am
And another ar 4 april 2020 at 11:30 am.

This is after i received 3-4 calls from customer service representative for not leaving idea.