What a shock
I can't say I'm surprised.
Having ported my mobile number of more than 20 years to them, one day they just decided to cut me off
Customer services have called me a liar when I reported this, insisting that I had texts and letters telling me this would happen (all I got was an email in my spam folder the day before saying that I asked them to disconnect it)
They don't know why it was cut off since the bill has always been paid on time
And now, when I call in, they put me on hold until I hang up (over 2 hours last time).
To rub salt into the wound, since the mobile is part of my package, I'm still paying for it.
If the local FTTP provider hadn't skipped this area, I'd have left them long ago.