So I switched to ID 3 months ago . Since I have had it I can’t ring any landlines. I have spent quite literally over 24 hours online over 3 months trying to sort it out . 
 

I have had the latest replacement sim come out and still once again it does not ring landlines . I have unlimited minutes pay my bills via direct debit yet I’m getting no service for what I am paying for . 
 

This seems to be an issue for lots of people on here ! What on earth is the problem ????