How can I access the updated Terms and Conditions on iPhone?

Re: new update for t&c’s

Someone in Japan seems to have a similar "Spanish" experience

see: iPhone iCloud terms & Conditions update N… - Apple Community

Please note: Seems iCloud Notes may need to be reset on the device and downloaded anew from iCloud.

ie: If needed: See the reply given in a discussion thread below:

Notes disappeared after accepting new T&C - Apple Community

Have a look on the below link. It has more details.

see: iPhone iCloud terms & Conditions update N… - Apple Community

Basically remove Spanish from your selected languages.

I know you probably didn't select Spanish, but it should fix the problem.