Calcutta Electric Supply Corporation [CESC] — Bill for sept 2015 was paid on 02.11.15 but message is given "defaulter" on my mobile no.. [protected]

Address:

700002

I, Smt Chitrita Biswas, of 10 G, Gopal Chatterjee Road, Kolkata-700002, (Cutomer Id [protected] & Consumer No. [protected] ) am to inform you that in spite of making payment of my electricity bill (for my domestic consumption) for the month of September'2015 amounting to Rs.304/(Rupees Three Hundred Four only) in cash at your cash office on 02.11.2015 at your cash office, situated at R.N.Mukherjee Road. But sorry to say that I am receiving message one after another in my mobile, bearing no.[protected], that the payment against the said consumer for the month of Sept'2015 has not been made, which may please be checked from your official record and feed back may please be given to my mobile accordingly, otherwise it is most insulting, because I never became defaulter since the effecting connection on my premises.
Thanking You,
Yours faithfully
CHITRITA BISWAS