In order to send and recieve mms, I need data on. I changed my apn this way only mms can use data. Koodo charged me $5 last month for data usage. I checked my data usage (I have the int'l sgs 2 i9100) and it said only messaging is using data. Is there anyway to get a refund and to prevent data being used on anything other than mms? This is not fair...because this is the 3rd time I've been charged for data usage I had no idea was being used.