Just returned. For calling numbers on the island and emergency purposes we have an Island phone from Sharon (queen of Sxm) still the best. We are self employed and only way to sneak away is to stay connected. We both have Verizon phones (iPhone 6 - Motorola droid - not sure which one about 2 years old). I'm going to look into 40 a month as I'm not sure what that is. But we pay 10 a day per line, its automatic and you receive a text saying your about to run out of your 24hr period so you have the option of turning it off (airplane mode). But the phone acts just like it does at home. Same calling plan etc. same Data and texting. It does add up but being able to just sit on the beach and resolve issues it's worth it! We stayed in Cupecoy, it worked in Simpson bay, on Mullet, Orient, Rouge and Grand Case no issues.