+0

Asking a store attendant:

I was wondering, can/could I get tax refund for this book in Paris.

+1

"can" is slightly more direct/definite; "could" is slightly more indirect/tentative. There is not a huge difference in this sentence.

The sentence needs a question mark.

+1

I would say: I was wondering if I can get a tax refund for this book in Paris.

CB

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+1

My personal preference is to match 'was' with 'could', 'am' with 'can'.

I was wondering if I could get a tax refund in Paris.
I'm wondering if I can get a tax refund in Paris.

CJ

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