Yes, you will receive an email every time a trade is executed or if you cancel a trade. This is just to notify you that your trade was cancelled and you may need to re-enter it.
As fractional are executed separately, you will receive more than one confirmation if you trade a fractional amount great than 1 share (e.g. 4.35 Shares).
For every executed trade, a PDF copy of your confirmation will be available on Stake for you to download and review.
On app: Head over to the 'Profile' section on the bottom right. Select 'Activity & Reports' and then select 'Trade Confirmations'.
On web: Head over to your 'Reports' section and then select 'Open Positions and Resting Orders'.