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Hi. I've got a Blackberry Curve 8900 and have the BB data plan. I usually browse using opera mini and use BB apps so I don't get charged by T-Mobile (UK) for that because it's part of the data plan. My bill is pretty much the same cost every month.

However, I did a device software update a couple of weeks ago and since then T-Mobile have been charging me for 'web' usage outside of my allowance but I haven't been using the T-zones or Web 'n' Walk browser, and I haven't changed any browser configurations on my phone.

Any idea why I'm being charged for data usage since I did the device software update? Or has anyone else had the same thing?