Waste of my time.

I was recently sent an LTE SIM Card Upgrade. I can forgive that the card was not delivered on the day i was told.<br> <br> This Delivery included a process to register the new sim card. The process did not work. I did try 3 times. The return message told me to call your Call centre.<br> <br> I have been on hold for over 35 minutes. I have been transferred 4 times and everyone seems very sure of where I need to go but those departments are then very sure I must go somewhere else. <br> <br> This is a massive waste of my time. Please sort out your call centre or get the correct department to call me.