Vodafone India — demanding to pay extra

Address:

No 252, 10th Main Road, VS Garden, JJR Nagar, Bangalore 560026, 560026

I have ported to jio network in 2018, i have cleared all the due payments. Now vodafone started demanding me to again pay the outstanding or else they will file a case against me for not making the outstanding payment. To avoid this confusion i have made a payment and called their customer care they said there is not any outstanding such. Infact they send me an cheque for the excess amount payment but the cheque was out dated so i didn't deposit it.
But again they asking me to pay. They are really making people fool.

This activity should stop and give back my excess amount + outstanding amount back at the earliest.