Not able to receive calls or sms texts

Hi im looking for advice from anyone that has had similar issue please. I ported my number from Smarty to ID yesterday and since its ported I can't receive calls (working fine before) The message caller gets when they try call me is the number is not recognised. I am also unable to receive sms texts - the sender says they are undeliverable. I can make calls and send sms texts fine. This issue has only happened since I ported my number. I've spent full day online chatting with agents and checking settings etc, all are fine. I picked up new sim from curry's to try and the problem still persists. Even when I insert the replacement sim into my old handset it doesn't work but other sims work fine in both handsets so issue must be down to the port or network as I've ruled out sim issue, setting issues and handset issue. The advisor told me port was successful and has passed my issue onto technical team. I was told the technical team will text me with update - eh how us that possible when I can't receive texts and that's what my complaint was about! I asked if they can email me but told no. I've been told to contact live chat again in few days for update. Im so frustrated as now im having to go through the advisor chat and not able to chat directly with technical team. Can't call ID mobile either as they don't accept calls - dont understand how a phone provider can leave you with no phone service for as long. Im paying for a service that is not being fully provided. Its so frustrating