Agarwal Packers & Movers — Charging extra money before conveying the same

Address:

47, Agarwal Packers and Movers, Ashok Vihar, Phase-I, Gurgaon, Haryana, 122017

I called Agarwal packers and movers to deliver my luggage from Delhi to Lucknow. Firstly they communicated me the the charges of Rs 7000 on which I agreed for Transfer and they have taken my luggage from my apartment, They gave me receipt which stated 7000rs only but when I receive the bill it cost me Around 17735.They have included some insurance charges without my knowledge and told they will not delivering my things till I pay them full amount. I am having a feeling that they are fraud because I cant locate my luggage now too.