Tachyonic Said:
"Sign-in issues with iCloud: [...]Hello! About 2-3 weeks ago I created a new account for work but I have issues with iCloud. It doesn't let me sign-in even though the password is correct.[...]"
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Properly Assigning a New Apple ID to an iPhone:
Set this Up Anew:
You are using a new Apple ID. It is currently assigned to another Apple ID. So, back up what need be, then reset you iPhone to factory settings, as if you were to sell it. Perform as insctuhated here including the iCloud logout: What to do Before you Sell, Give Away, or Trade In your iPhone or iPad - Apple Support
No succes?...
For Account Assistance, Contact Apple Store Support:
You need to contact Apple Support Directly. This is a User-to-User forum. We are all volunteers. So, as you may suspect, no one here has access to that information — and that is a good thing, BTW. That’s why for Financial Assistance, you need to contact Apple Support. They’ll see what’s going on and will run you through the fix.
Apple Contact Info:
- Contact Us - Choose Locations
- Proceed from there, as necessary
- Why the Wait: Phone calls are taking a bit to go through at the moment, due to lots of calls. With the Coronavirus Pandemic, many are at home at the moment, with much time on their hands to contact Apple. So, just stay on the line, and you will get through :)