SMS stop working every few hours

Updates to my mobile phone works for a while and then after few hours they stop working. When i log in on twitter web page in settings device updates are ON but they are not working until i send sms from my phone to switch it on. I must say that this is useless. Also, received sms is always 0/250 no matter what.

I live in Croatia and my mobile carrier is VIPNET.
 
sad I’m frustrated
Inappropriate?
3 people have this problem

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