New user - can't connect to Wifi during transfer period

Thank you for taking the time to reply.  I had no service on either provider.  I have got the wifi connection working after connecting the iPhone to my Macbook and doing both a software update and restoring the phone (just updating the network settings and APN hadn't worked).  I'm too scared to toggle the wifi off and on in case it stops working again (superstition rather than logic).  

The wifi connection stopped working this morning - no new apps were downloaded - there is a personal VPN but that wasn't causing any issues previously.  I can't know what caused the issue - maybe it was Apple - but being in the transfer period made me suspect the network change.  Hopefully this will help anyone in future with the same issue. 

Would still appreciated feedback on the general quality of data on Smarty but I guess I'll find out over the next few days once I switch over.  After this I think it might be a case of getting what you pay for.