Scam or fraud: Yes Bank — staff negligence

Staff misguided us for taking the mosambee app device and they told us that after one month we will refund the machine. now u take d machine. and also they told us that all the machine charges will be refunded.but after even one month Mr. Satyam ([protected]) does not listen and even dont contact us.he also said that after getting bills from us he will give cash to us and so so things
Mr. satyam has done a fraud with me. please take action on him immediately.