I have just received a new sim card about two weeks ago, this was because the old sim had broken. I have just received a message to say that I will get a new sim card delivered in the next three working days. It also says that it must be activated wi...

My mobile rings, shows who's calling, but when i answer they cannot hear me and visa versa. 

All of a sudden i am unable to make or receive calls to my phone. Contacted Virgin, totally useless. I have a Samsung Galaxy A51. Virgin told me to go to settings, roaming, mode and select international. After i told them i could not find it, they sa...