I don't understand why it has 4.5 stars and why this company can exist. I bought a promotion sim card from their web site, $5.00 for 2 gb a month. First I tried to port in my existing number, but their web site gave a bizzare error, something like: success: undefined. So I call their CS, gave all required information. Then she told me it would take 24 hours to finish porting. After 25 hours, the porting didn't happen (I had their sim card in the phone). So I called again. This time, the CS told me there was no port-in request for my phone #. I was surprised but decided to try again, giving all information.... 24 hours passed, porting-in didn't happen. I called again. This time, CS told me that there is a porting request matching the sim card #, but phone # is not my phone #. There are 2-3 digits difference from my phone #. He offered to submit a new port-in request. I told him, forgot it, I have no confidence in the company. It is a waste of my time and money.