Vodafone — Network issue

Address:

old tandur tandur vikarabad district telangana state 501141

Hello
i am recently mobile portability from Airtel to Vodafone network after one year before i am also using idea India sim card and one year age i was change sim network due to network issue but recently mobile portability in same network Vodafone 15 day age but issue was same me not using 4g network is show always 2g network in my area indoor and outdoor both. i was complaint so many time but no one response me
so sir kindly request of you take my complaint and solve my problem please provide 4g network or change my network to again other network.
thank you