Intex Acqa I5 Octa — Service centre not responding satisfactorily

Website:

www.intexmobile.in

I bought intex aqua i5 octa on 30/12/2014 and i have given my phone at baroda service centre locating at fategunj on 19/08/2015 due to speaker & hanging problem. they said that your phone will be repaired after 20 days approx. after one month when i go to take delivery they delivered me intex aqua i5 octa but when i switched on the phone it shows intex aqua 3x. and the in the settings also the features are of intex aqua 3x. i refused to take that phone due to not matching the features with my original phone. i submited the proof also for my phone's features and they agreed with that and send again my phone to company after further 17 days they called me to receive delivery of the phone. when i went to take delivery, again it was intex aqua 3x. i again complained about that but they not responded satisfactorily. please help me out about this problem. ow can i get may phone. job sheet no.[protected]t001