Great Eastern Trading — rough behaviour after selling product

Address:

B-30/002,Peerless Nagar,Panihati, 700114

We have booked an air conditioner from your sodepur brunch on 07/05/2019, mrs anjana chatterjee deals with us for that product and she assured us the delivery will be done between 4 days. Now when my mom called her for the status she behave so much roughly with my mom using the sentence"ata toh hater moya noy j chailei peye jaben", we are a regular customer of your organisation and we have bought few product from there. If this behaviour will continue with the customer then i have lot of option to buy my product from somewhere else. I don't really want to punish someone for her behaviour but i need to do this just because it will not happen in future with us or with someone else.