I just registered my new sim card,I got the "success" page, but my phone is still saying "unregistered sim", I have a Samsung Galaxy Ace. Is there a delay before it shows as registered? I have a $5 balance on the phone and I can't make or receive any phone calls either. When I called the cell phone from my house phone it said my number is not in service. Do I have to do anything else to make or receive calls? Also, when I try to top up my credit, I get a msg saying they couldn't process my top up pin numbers. What can I do?