Gujarat Gas — Re fitting

Hello. My self savita raval and i am customer of gujarat gas since 2013, . Due to kitchen renovation i submit side change application on 9th march 2021 on 12th march 4000rs was debited from our account as an advance and they say technician will come after 40 45 days.. It's already 45 days up but no one is come to re fitting of our connection.. Please help us asap.. No one is taking responsibility for this.. Local office owned says surat branch will help us. They says nothing is in our hand..