I thought it was 7 day? Not 28. Make sure u check T&C before join.
Thanks for bringing that up. Ive had a look at their website which states:
Money back guarantee: Available to new customers and existing customers taking a new service. Call us within 28 days of activation for a refund of your first month�s rental charges and any installation charge. You will only be charged for transactions (calls, purchases, service upgrades) occurring after activation. Statutory rights are not affected.