The task requirement is an estimate based on how long it took us to complete the task on our computers. We have found that loading times vary significantly based on which browser we are using, and we highly recommend using the most up-to-date version of Mozilla Firefox or Google Chrome for the best possible results. If you find that we significantly underestimated the time it takes to complete an offer, then please let us know using the blue "Send Feedback" link above and we will reassess the task's length. Unfortunately we will not be able to credit you extra for tasks that take longer than the estimate.
If this does not answer your question, please submit a request to our support team.