Prices by listMarketBook differs from prices on the web page

[Letrix]

Hello.

I used this project: https://github.com/betfair/API-NG-sa.../master/cSharp

When I write something like this:

priceData.Add(PriceData.EX_BEST_OFFERS);
var priceProjection = new PriceProjection();
priceProjection.PriceData = priceData;
priceProjection.Virtualise = true;
var marketBook = client.listMarketBook(marketIds, priceProjection);

prices in marketBook are not the same as shown on Betfair web page. What I do wrong?
Do I understand correctly that now (with all this new API's) I can somehow obtain exactly the same prices as people see on the betfair.com without writing additional functions for cross matching calculations?

[jabe]

The cross-matching can be obtained by specifying VirtualBets=TRUE (that probably isn't the exact format, so check it in the documentation). Also if you're using the delayed key there might be differences.

[Letrix]

As you can see I specified

priceProjection.Virtualise = true;

in my sample code. So this is not the reason of wrong prices I get.
I use delayed key but if the maximum delay is 1 min it also can't explain it.
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2.jpg

I see this $5 @ 7.4 offer during last 20 minutes but I can't read it using listMarketBook.