With your new phone, did you use your old sim (where everything should work as normal) or new sim and do a sim swap? If it's the latter, try rebooting the phone (turning it on and off) to see if that improves anything.
If not you need to call O2, borrow a phone, use a landline or SKYPE to call O2. All numbers and info on Skype are in this guide Guide: Coronavirus Community Help and Support
*The Game Is On*
Hi @Lucyiphone13 did you manage to get your calls and texts up and running?
→ COVID-19 support - Help and support from O2 during the lockdown
→ Access for You: Registration - Find out how to register for our Access for You service.
→ Just joined the community or thinking of registering? Check out this handy starter guide!
→ Have a query about your account? login to My O2 for help
If you'd like to take part, why not register?
Track usage, upgrade and get support with the My O2 appDownload My O2