Upvote:6
The consular questions are legitimate and you have too many excuses/explanations. Consular officers do not like complicated situations, especially for ordinary tourist/visitor visas.
To their credit they tried contacting you for clarification. A USA consular for example would just deny you straight away. Address their concerns by fixing your life situation.
The convoluted story about buying your father a house etc. If you own a house it should be in your name. If you have funds it should be in your name.
You should show your ties to UAE through clear and convincing evidence of property, family, funds, decent job, etc. You should also build a travel history. Without doing some or preferably all of the above, you are not going to New Zealand anytime soon.