No inbound calls or texts

Called the Lebara number today and the agent fixed my incoming calls immediately - so 2 days after initial delay

nationalint did you have to do anything with the phone or did Lebara just fix it?

I restarted it, although I don't know if I needed to.

The agent fixed it, like he just pressed a key, didn’t even have to restart phone

So, here's an update.
After my incoming calls/sms started working on Wednesday I kicked off the port-in which I scheduled for Friday (today). As of right now, the outgoing calls/sms has switched over to Lebara; the incoming calls/sms are still going to my old phone.
I have called customer service who recommended removing and reseating the Lebara sim, and also resetting the phone. This didn't seem to make any difference. They also suggested wait up to 24 working hours and it should resolve by itself.
Since I have a spare handset I can keep both sims connected, so at some point I imagine sim registration will fail on the old sim and it should all come over. Otherwise I think we are experiencing what is called a 'split port' (google it).
NottyB are you still having trouble?

monky47 i think I am fixed. I contacted them via webchat last night and basically said I was fed up and was going to return to Vodafone if it wasn’t sorted during the course of the webchat. He said he had “refreshed”the system and if I did the old turn it off and turn it on everything should be working as it should. After I had done that I managed to receive a call. Yay! The bigger problem was receiving authentication codes for logins which also seems to be fixed.

Looks like my port has now properly completed (I think).
It was weird for a while, like a transitional port throughout the day: first only outgoing calls/sms worked, then gradually incoming sms and some calls were arriving; but others were still routing to the old sim, and even after several hours (and after I got the confirmation from Lebara that the port had apparently 'completed'), some incoming calls were still not routing to the new sim.
I don't know how mobile network call routing works but it looks like the last calls still being sent to the old sim were phones on my old network. Almost like they had some sort of cached routing that needed to be flushed. It was only once the old sim registration failed that forced the swich - the final call I received on my old sim was about an hour after the port had apparently 'completed' and although it connected, the call dropped after a few seconds. Almost like the network detected the conflict and cut the call. Then then some time passed where the caller couldn't phone my number at all, and then finally maybe half an hour later the call routing seemed to resolve, and now it seems fine...
I don't know if that's how call routing works, but it kind of makes sense. Maybe someone in the know can shed some light.