Hi,

With the wife and I both having work phones, we've given the kids older iPhones and the sim cards for our old prepay accounts.
My one worked fine in an iPhone 6s, but my wife's sim in an iPhone 7 has a strange lack of data issue.

Phone calls and traditional text messages work, but nothing that requires data.  
That means likes of WhatsApp etc do not work outside of WIFI, and that's predominantly what we wanted the kids to have the phones for.

Phone only shows up connecting to 3G (even though 4G is available) and web pages etc show as trying to load but do not progress.
Likewise WhatsApp shows as trying to connect but never does so.

Phone is on latest iOS, and we have reset the network data settings and double checked all the mobile data settings/config etc.
Account has credit and 50MB of data sitting there that can't be used.

Spent time in store where a Sim swap was undertaken to rule anything odd out there.
Tried our Sim card in another phone there and that store phone experienced the same issue.
Tried their Sim card in our phone and it all worked well, so a relief to see it wasn't a phone issue, but that the problem followed the sim card/account.

Store advised they couldn't do any more, so gave a phone number for us to call Vodafone Tech Support.
Tried that and it was pathetic, so much so that I ended the call to reclaim some of my weekend.
Was disappointed the store couldn't contact tech support and help whilst we were there, see the problem through to resolution and all.
Seriously the tech support phone call was a complete and utter waste of space, that was quite an eye opener.

Plan B is just get a new prepay sim and be done with it, starting a fresh on a different number.

Is there anyone from Vodafone on these forums now that could take a look at this please?
Or has anyone else experienced anything like this before?

Thanks in advance.