Maria's answer is about right for an English native speaker. There is a big difference between British English and American English; British: 'Have you got (something)?' Answer: 'Yes I have.' American: 'Do you have (something)?' Answer: 'Yes, I do.'

First of all, "have got" IS NOT bad English. One of the uses of "have got" is when you want to discribe yourself. For example: "I have got blue eyes and fair hair". You can also use "have got" whan you're sick, ex.: "I 've got a cold". On the other hand, "do have" can be used ONLY when we want to highlight something we say, ex: "I'm telling you, I do have three dogs!" (irritation) "Have" is the most common word to express that you possess something.

I suggest never using "have got" because it's bad English. Yes, I know all of the English as a foreign language books teach this construction, but native speakers rarely use it. Well educated native speakers use "do have" instead of "have got." Use "have" when you're making a simple declarative sentence. Example: I have two cars. Use "do have" when making a question sentence. Example: Do you have time to talk about English grammar?

I have a dog (formal) -I don't have a dog - Do I have a dog? I have got a dog (informal) -I haven't got a dog -Have I got a dog? I've read a newspaper I haven't slept Have you had a conversation with her?

Here is something you may find useful. http://grammar.quickanddirtytips.com/have-got-grammar.aspx