Wrong Call

Question

The guy calls home but a different lady answers.

Guy: "Who are you?"
Maid: "Im the maid of the house"
Guy: "But we dont have maid in our house"
Maid: "The Lady of the house has hired me this morning?"
Guy: "Oh,is it? Im the Gentleman of this house.Can you call me the lady,please?"
Maid: "Your lady is now in bed with another man,sir.I thought he was the Gentleman.

Guy is very furious and goes mad.He thinks a devious plan and tells it to the maid:

Guy: "Do you want to earn 50.000 $"
Maid: "Yes of course,Sir"
Guy: "Allright then.Listen to me carefully.I have a gun in my suitcase,take it and bang the witch and supine"

Guy hears 2 shots on the phone.Maid gets back to phone and tells:

Maid: "I killed them,Sir.What should i do with the corpses?"
Guy: "Throw them into the pool"
Maid: "Ee,Sir,There is not any pool here?"

Guy thinks a moment and says:

Guy: "Excuse me,isnt the phone number 816 14 66?"