I am using vodafone sim seems 4 years ago.I am fully satisfied with their support and lots of offer in the 2017 vodafone launched supernet 4G that is a most fastest network in the world.I upgrade my 3G sim to 4G sim and I get free 4GB high speed data that I can use for download and other browsing. The support center is open 24 hours so when you facing a problem then you can call the support center and they will help you and solve your problem in 24 hours.The speed of the 4G internet is very fast and the calling system is very smooth even when you are in roaming.