Present pirfect or past simple?

[tengri2000]

Hello! This is from John Eastwood's "Oxford Practice Grammar", Test 3E:


9. You won't believe this, but I've got some tickets for the concert. Oh, well done. How.........(you/get) them?


In the answers it is the Past Simple: How did you get them?

But why we can't use here the Present Pirfect: How have you got them? Would it be a mistake and what is the rule for that?


Thanks a lot in advance!

 

[tzfujimino]

Hello, tengri.
Welcome to UsingEnglish.

It's 'the present perfect' - please check your spelling.

 

[Raymott]

Yes, "How have you got them?" would be a mistake.
The second speaker has already offered his present thoughts, in the "Oh, well done". He now asks something about the past - "How did you get them?" I can understand why you might want to use the present perfect; his having got them in the past is obviously still relevant in the present. But how he got them is not relevant to the present.
I can't think of any situations where we say, "How have you done that?" It's (almost) always "How did you do that?"