It did this last week5 Jun 2017 15:39
Touched £3 and retreated a little. Then before the week was out we were sat way north of £3, finishing at £3.62. It's as if they are raising the price to encourage people to sell to fill orders before the SP advances further. Creating a market in a share with a very small free float. Compare this chart to W7 and BooHoo. It's very similar.