If I'm on my home Wi-Fi, and my 3G is on, will it cost money?

I just got a new iphone and I'm connected to my home Wi-Fi, and my 3G is on, my phones telling me I've used data. Is this costing me money?

It's possible just make sure when your using Wi-Fi you have it set to use Wi-Fi over 3G if it's an iPhone then it does this automatically

When your at home goto settings and turn your mobile data off and turn Wi-Fi on.

Wi-Fi signal drops alot so when it does you won't be noticing as it automatically connects back into your 3G. If you turn package data off until you leave the house (or wherever you are using Wi-Fi) then it won't connect until you want it to.

If you lose connection to your Wi-Fi network and your phone has data turned on, then it will use data. If you want to be absolutely sure that you're not being charged, make sure you turn off 3G data when you are using Wi-Fi.

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