GBIC — Fraud in policy shifting

Address:

Delhi

Dear Sir/ma'am,
Almost 3 months back I received a call by your GBIC department & the person was Manish & his mobile number is [protected]. Very humbly he advised me that policy which I'm running (Max Life) is not profitable so switch to another one (Few Option's were given to me), I was convinced, so I switch my policy (Max Life) as the person told me that he is authorized government employee & take care of my money on switching my money, one to another policy (Reliance Nippon) & the Manger appointed for me is Neeraj (Mb no- [protected]).
After switching my policy I waited for weeks for my last policy's payment. In starting time Manish & Neeraj both were telling me it'll take time, there is no worry & now the time both of them are not picking up my phone & once when Manish picked up my phone, I told him that I'll file a complaint against you, he clearly told me that to whom you want to complaint, do it.
Please resolve my issue if you can, please.