I have received a 2nd 4G SIM but still get no data. The card works in my partner's phone that has a slightly different operating system. Mine is Samsung Galaxy S4. Spent hours over 2 days with the call centre to no avail.
If the SIM card works fine in another handset then it's clearly not a network or SIM fault. This leads me to believe it's not installing the APN settings on your handset. You can do it manually and the settings you need can be found below:-