Touch wood, still working for me. I feel bad that all is OK for me, but that my fellow MacRumors friends are still having problems ☹️. Really don’t know what to suggest, other than maybe the following recommendations:
1. Check, check & check again that you are providing Vodafone with the correct EID number. It is a 32 digit number, so easy to get one or more digits wrong when reading the number out to Vodafone. Also, it is quite possible that even if you provide the correct EID number, that the member of staff at Vodafone will get a digit wrong (when they type in the EID number on their system). Ask the operator to read the number back to you to double check
2. Ensure WiFi is Switched OFF on your phone when speaking to Vodafone & whilst waiting for the cellular option to be activated. I think this possibly a key point
3. Power your phone on & off around 10 mins after Vodafone tell you that they have processed your request
For info, I did points 2 & 3. I did not do point 1, but guess I was lucky, in that I must have read out the EID number correctly & that the person at Vodafone must have taken down the EID number correctly
Some general info which may also be of interest to people on here. Yesterday, I thought that I had a problem, as text messages were not coming through to my Watch, whilst my phone was switched off. However, after a bit of investigation (via the internet), I quickly learnt that although you can make & receive cellular calls (via the Watch) when your phone is switched off, you can only receive SMS messages, if your phone is switched on. Your phone does not need to be near the Watch, but needs to be switched on somewhere (from example, if you leave the house with only your Watch, you would leave your phone at home, with the phone powered on). In addition, you also need to have iMessage switched on (on your phone). Tested this all out today by going out for a walk with just my Watch & phone powered on (left my phone at the office, powered on)....a couple of text messages came through fine to the Watch