RBL Bank — your executive used bad words

Hi i am using credit card.. Today 10.11.2018 at 5.30pm one of your executive called from [protected] numbers for credit card repayment i told her i repaid on 9.11.2018 only even though she used bad words she did not tell her name also so i am planning to put complete in consumer court.
So within 24 hours answer for this mail... Otherwise tell her to face the problem.
Remaining payment i will not do... Because of this...