Have you dialed *789# to check SIM Registration status?
And getting SP SERVICES TIME OUT!
It is a service problem
You can call 180 and follow the voice prompts to speak with a customer care representative of MTN
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Have you received a message from the telecom giant MTN to register your line? If yes,please make sure you do at any of their service Centre nearby.To avoid disconnection from the network.
Because once your line is blocked....
It takes 48hrs for your line to be completely active on the network,after registration (as told by their agents)
STEPS TO ACTIVATE MTN LINE WITHIN 30MINUTES AFTER REGISTRATION

But to be back online in minutes
1. Switch off the line after registration for like 30mins
2. Try calling in with another line if successful
3. Try calling out if not successful
4. Switch the line off for 5 more minutes
5. Then repeat the steps from step 2

If SIM registration is successful you should get about 5 messages welcoming you to mtn with your Customer Id and MTN Security number.
Note:The message asking for your permission to use your BVN information to register your line is LEGIT,but this works for only people who have done their BVN and peolple who haven't been disconnected from the network already
To do this send Yes to 799

REGISTRATION BONUS:#500 TO CALL ALL NETWORKS www.withnaija.com