Is it reasonable for the property company to collect the deposit of electric card? Is there a basis?

I really don't understand this practice of property management. I don't think the property has the right to charge the deposit for the electric card. The house is my own, and the things attached to it are also my own. If I take something that belongs to me, do I need to pay a deposit to others? ! I don't know what is the basis of this deposit collected by the property, and when can it be refunded? The house I bought has no check-out problem at all. Why should I pay a deposit? If I don't check out for the rest of my life, should I leave this deposit in the property all my life? Is this still called a deposit? This is clearly the act of selling electric cards. Does the property have this right? I urge the leaders of the Price Bureau to give us a fair and reasonable answer after investigating and verifying the situation. We asked the property management company to refund the deposit fee that he should not have charged.