You can always cancel a purchase as long as the transaction is not confirmed by the vendor.
Simply navigate to the order you want to cancel and hit the button CANCEL REQUEST
This how it looks like in the system.
You will also see that the process in step 2 or step 3 shows a red circle with a cancellation sign. It should look something like this depending on the stage of your cancellation, or the vendor's cancellation.
Can I cancel my purchase after the vendor confirmed?
We are sorry but this is not possible. All orders on Solartraders are binding as soon as the vendor has confirmed the transaction. Until then a cancellation is possible but after that there is no option of an cancellation. Please respect that and act responsible.