They do what they say, when you need them too! I have used this service for many years now with no problems or complaints at all from me in any way shape form or fashion that i can think about as far back 20+yrs ago ish!! If it does not work right away then its probably because your using an old piece o equipment so give 'em time sometimes if their busy than wait but dont take long if possible cause there are others waiting just like yourself also.
Frontiers customer support team will tell ya everything u want know plus more and always very helpful friendly people who care abt u even tho ur paying emd be sure 2 ask questions before hand cuz once hired thay wont go easy on yu. !