Airtel Broadband — Irrational notice when disconnection sought

Address:

Chennai, Tamil Nadu

Customer A/c # 10903757

Annoyed at recent excessive billing from Airtel on my broadband connection, I had asked for disconnection and wanted to follow the procedures. They continued to convince me to stay back but I wasnt interested. Their customer care voice recording will reveal I had paid upfront for the DSL model and that I only need to pay up the latest outstanding bill and return the flimsy landline instrument. When they arrived at my door, they were not ready to take back the phone instrument despite me returning it to them as its a cheap make that I had replaced with my own cordless, The last outstanding bill has a due date of 15-April and I paid it 1 week earlier 7-April (online receipt attached). They send me a very rude letter despite being their customer for over 7 years and have never defaulted on payments. When I call up their customer executive, he asked me to ignore the letter if I have already paid. Why do they have to behave irrationally and send standard stupid letters only when their customer shifts loyalty to another provider for better service?