var request = new bfsapi.UpdateTransferReceiversRequest()
{
	Credentials = new bfsapi.Credentials
    {
    	UserName = "APIUser",
    	Password = "thesecretpassword"
    },
    identify = "theIdentity",
};

request.Fields = new bfsapi.UpdateTransferReceiverFields
{
	Name = true,
	Comment = true,
	BatchOrders = true,
	CounterPartyClearingNo = true,
	CounterPartyAccountNo = true
};

request.Entities = new bfsapi.UpdateTransferReceiver[]
{
	new bfsapi.UpdateTransferReceiver
	{
		BrickId = Guid.Parse("fc4d5141-35c4-42fb-bb9c-4e52a22a2f12"),
		Name = "The AG account",
		Comment = "A very important comment",
		BatchOrders = false,
		TransferReceiverExtraInfo = new TransferReceiverExtraInfoAutoGiro()
		{
			BankName = "SEB",
			CounterPartyClearingNo = "1234",
			CounterPartyAccountNo = "1234"
		}
	}
};

var response= bfsapiClient.UpdateTransferReceivers(request);