I recently subscribed for the free version of ZOHO and after going through the basic setting up, I started adding contacts to the CRM. Unfortunately though, I am facing an issue. Each time I try to add a mobile phone, I get a "please enter a valid mobile" error message. I am 100% sure the numbers I am entering are valid, although I don't know how ZOHO would know if a phone is valid or not. All it should need is a specific number of numbers, so why is it doing this? I have tried logging in with other browsers, I have tried running my browsers in safe mode and I have even switched devices, but nothing seems to "allow" me to add a mobile number to my contacts. Can someone please help?

Thank you