Jodhpur Vidyut Vitran Nigam Limited [JDVVNL] — Net metering bill discrepancy

I have Solar PV grid connected system installed at my residence from last 10 months my net exportsurplus units of May 21 month which was 97 units was not adjusted in next billing period where in 150units net was imported from grid to my residence as per latest circular or guidelines if excess of electricity is imported any credit Electricity units have to be adjusted in next billing period.kindly clarify on the same