Jaipur Development Authority — Allotment new plot through exchange under hira lal shashtri scheme zone 14

I have been allotted a plot no D5 UNDER ZONE 14 OF HIRA LAL SHASTRI SCEHEM OF JDA IN THE YEAR OF 2020 .IHAVE PAID THE FULL AMOUNT AGAINST THE PAYMENT OF PLOT AS INSTRUCTED BY AUTHORITY FOR ISSUING THE LEASE DEED /patta . After doing whole processing jda said that they can't issue lease deed for plot D5 as it situated at wrong place and they will allot a new plot of same size through exchange process .Now we have been informed that plot No D77 has been selected for allotment to me .it's been almost 4 years we have not alloted the plot and after doing all the process and payment also jda is not responding .