Listening to radio using smart phone

Question

Hi, I'm new to this and a technophobe so please forgive me.
I've just had an e-mail from BT advising that i've used more than 7gb of my 10gb.
I've recently bought an i-phone and i've downloaded a few apps which i thought might account for this. 
However, I've just spoken to a BT adviser who tells me that listening to the radio on my i-phone (or laptop) would use quite a lot of my allowance up, which i have been doing a lot.
I'd previously been on the BT website and there it tells me that i can reduce my usage by connecting via WFI rather than GPRS, yet the adviser told me that connecting via WFI uses the same amount.
I'm confused now, can anyone help?
Thanks in advaance
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Answer 1

alicatpawz wrote:
I'd previously been on the BT website and there it tells me that i can reduce my usage by connecting via WFI rather than GPRS, yet the adviser told me that connecting via WFI uses the same amount.
It uses exactly the same amount. The point is that the monthly data limit with broadband is probably 10GB minimum, whereas using mobile networks it's more likely to be 500MB (ie ½GB). So if you're bothering the limit with wifi, you might blow it away using GPRS. 
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