In order to earn using offerwalls, you would need to open the “Offers” page in “My apps” section of the JumpTask dashboard.
There, you will be presented with the list of available tasks that you can complete. Pick a task that seems to be most suitable for you and press on it.
A pop-up should appear with instructions on how to complete the particular task. Please follow them carefully in order to complete it successfully.
After the task is completed, you will receive the JMPT reward as soon as the task supplier validates the completion. The timing depends on the offer itself.
If you haven't received a reward for a completed task, please read this article for instructions on what to do.