Need help with resignation and payout

Reason for resignation -- they deducted 5000 rs in my last month salary , when I asked they said it was a deduction against penalty for not achieving kra. When I had not signed any document stating any kra I gave resignation to my employer With notice of a month Situation got heated and they asked .me to leave with immidiate effect . So as per policies ,I told them they have to pay me this month and 1 month extra payout and she agreed. Now when I sent her a mail about conversation we had she changed all her statement and replied with something unusual to digest. Please suggest what to do I need to reply her on mail Mail I sent ;- Dear Akshita Ma'am, As per our mutual conversation and agreement I was tendering my resignation with one month's notice wef today dated 17/8/2019 and company has accepted my resignation , but asked to relieve me from my duties from today itself without wanting me to serve notice period and with 1 month salary payout against the notice for 1 month whi