Iphone calling incorrect number
Hi
I am puzzled by my phone calling an incorrect number when I dial one specific contact.
The contacts details are correct with only one number listed for them. Whether I ring manually or ask Siri to call the contact, an incorrect number is contacted.
I have deleted the contact, turned off the phone, turned on, re entered the correct contact details and it still happens..
Any ideas please?
iPhone 8 Plus, iOS 13