RBL Bank — effect on my cibil score in covid-19 period

My credit report is got down by 70 point because of rbl bank. As they have updated one delay payment to cibil beuro and my cibil score decreased by 70 point. I have called in rbl customer care to know the issue they said please write a mail to rbl card services. I have written mail to then thrice but no positive response from them. I have talk to cibil beuro as well they said talk to your bank. But i'm not getting response from bank. My score should not be impacted in this pandemic situation as per goverment but still my score impacted. My whole family is suffering from covid-19 and same i have informed to rbl bank on mail but no response on that. Last payment i have done in may month 2020.