Since porting from eir to 48 over 2 weeks ago I can't receive calls or texts from 3 customers. They get a message that number not recognised. I can call them. Been on to support numerous times and getting nowhere. Either told they will raise with technical team but I never hear back or that not their problem and to contact 3 myself - I have never been a 3 customer & don't think I should have to get someone who is, to sort the problem. Seems to be a routing issue. I have now raised this to the level of a complaint but any other suggestions or similar situations? Thanks for reading.