Same thing is happening with Rogers customers in Canada. I was able to reach Nokia tech support and they told me that the 1308 released was incomplete and there will be a second firmware update (1314) to address all the issues, they did not have any timelines available.
Maybe we can have a global 1308 issues sticky going, so at least when people talk to the provider or to nokia they can give them a link to the thread to actually show them that this is a bigger issue than what they think.
I want to support Nokia, i was patient about the dust in the camera (still have it), patient about all the other blunders and the battery flash drains, but I need my phone to perform at least its basic functions. I have no connection very often, missed calls, dropped calls, missing sms, MMS doesn't work at all any more. Its getting extremely hard to cheer for Nokia, when they allow their own mistakes to go on for this long without being addressed.
I'm not sure how they are expecting to mount a full comeback when they are screwing over the current customer base of early adopters by being negligent and not addressing things fast enough.
I think this is elaborately discussed in more than one threads about 1308 update. Even the UK 1308 update thread discusses this. The way AT&T has got their own 1314 update by Nokia, the rest of the world needs this OS. The reason it isn't such a big outcry as AT&T users is because it affects most of the phones that run on a network that is 3G & 4G. There aren't many 4G networks around the globe yet. In the UK, it's only EE and I will be surprised if more EE customers (Orange and Tmobile too!) haven't noticed this horrible connectivity. I am not sure what other countries around the globe have 4G, but 1308 on those network handsets will cause the same sort of chaos. I have hopelessly tweeted Nokia a LOT of time and even sent emails to Nokia but they have only released 1314 for AT&T customers because it was a huge number and clearly visible. The rest of us seem to be in minority and Nokia doesn't see this as a problem at all. Our best bet is we get this patched when we get GDR2 from Microsoft in July. I am just adapting to not having connectivity when I need.
If you guys do have spare minutes, drop an email and/or tweet or Facebook message to Nokia and let them know what network you are on and direct them to more than 10 threads on this board. Hopefully they will get 1314 for all Lumias before GDR2.