I checked my usage and saw that i had 2.2 mb remaining so i switched off my data. After an hour i got a text that i had reached my allowance ajd been charged 1.5 on my account. My understanding is that the 1.5 charge allows you to use an additional 200mb for the day. However, i then got a message that my smartcap limit has been reached when i switched on my data. I did not get any extra allowance but have been charged. Can someone please check this for me or clarify how the out of allowance data charge works?