Groww ****** me

Hello everyone, need your help

Groww deducted my sips twice, and before that i was having sufficient funds to fulfill those but after that my fund went to below the required amount to satisfy two installments as they are deducting it twice.

I contacted with the customer support , they closed the query without proper resolution.

My bank will charge 2*400 as failed mandate. Please tell me what can I do.

After this i am gonna stop all my mandates, currently too much frustrated. Please ignore any grammar or paragraph issues.