All travel insurance plans have a free look period that starts when the plan is purchased and lasts between 10 and 15 days, although some last longer. This free look period gives you time to review your policy and return it for a refund within the time period.
The following articles should help you use your free look period well.
Damian Tysdal is the founder of CoverTrip, and is a licensed agent for travel insurance (MA 1883287). He believes travel insurance should be easier to understand, and started the first travel insurance blog in 2006.