DJB — Over billing n wrong reading

My k.no. is [protected].MY water bill comes huge again and again.no body listen in Djb office kanhaiya nagar.
Ab Maine meter change kraya to 7-8 month ka bill ek hi cycle mai add kr diya and send me huge bill again.Now they don't accept my application but after 2 years officer came n want to disconnect my connection or pay the amounts.
Pls look into the matter n solve the problems.My consumption is v.less as shown in bills.but bill is huge.
I cant pay it.
I hope for the proper n just concern