Telangana Southern Power Distribution Company [TSSPDCL] — Excess Billing in June 2021

The electricity bill received for the common meter in our apartments in Tarnaka, Secunderad ( SC no.V6062759 and USC No.[protected] is for abnormally high units as compared to all the previous months.The last 6 months bill details are as below:
Month Units Amount
Dec 2020 436 Rs 3000.00
Jan 2021 405 Rs 2785.00
Feb 2021 422 Rs 2775.00
Mar 2021 444 Rs 3073.00
Apr 2021 448 Rs 2941.00
May 2021 444 Rs 3306.00
For the month of Jun 2021, the number o[censored]nits billed were 881 and amount is Rs 6977.00. There seem to be something grossly wrong. Request please help us in correction of the Jun 2021 bill and take any corrective action required for future for which we shall be grateful to you.