Vodafone India — network issue, internet issue

Address:	Pune, Maharashtra, 412101
Website:	Vodafone

Hi sir, madam,
On wed evening - 15th nov i took 2 4g sim cards for myself and my wife and after that issue started, i am using this vodafone from many years never got any issue related to network, but now am facing network issue/internet issue 24*7 on any location, am getting all the time weak connection, no service, i only carry one number and its so frustrating as i need to attend and make important calls every single day. On friday eve i visited the vodafone store and registered my complaint but i didn't receive any message or any phone call to resolve this issue, please provide the immediatesolution, i guess i did big mistake by upgrading to 4g sim.