Air India Express — Failed to reschedule my flight booking due to airline cancelled their flight

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Airindia express

I booked flight tickets from madras to sharjha in airindia express on 17.07.2023 PNR-BPRUDB AROCKI MARY ANTHONYSAMY, PNR-20Q13N venkateswararao gadde . airline is cancelled their flight.i called so many times to airindia customer care no.but no reply.then I had visiting airindia jorebagh newdelhi office from 27 thMarch 2o23 onwards.they are keeping on saying our websites are in upgradation.i too waited a long period till 10 th April 2023.now airindia official response is can't reschedule my flights though mistakes are from their side.on the time of booking I had a same flight fare from different airlines.now tickets are high, why should I pay extra for booking new tickets though airindia is operating flights to dubai on the same day from same sector.kindly rescheduly flight booking as soon as poss