Sony India — Installation reg.

I have purchased sony tv on 06.05.22 model KDL-43W6600. The person came on 07.05.22 for installation. He provided us with movable stand, Syscom stabilizer P-50 and remote cover. They charged Rs. 4850.00 I have requested the bill but they say only for stabiliser they will give bill. They said stabiliser costs rs.2300.00 but while I checked it is rs.1500.00. i chated with sony tv service centre movable stand is not recommend but they fixed movable stand. I need to know whether the amount given to the installation person is right or not? We already have stabiliser but he said it is not suitable for sony tv. He charged Rs. 300 for remote cover. For movable stand they didn't provide any bill. Kindly resolve it soon as possible. Request id 69870634. Interaction id with sony technical support 69886198.