how to unmerge contacts?
i just got a new macbook air yesterday, i logged into my apple id. today i just tried calling my friend so i go into my contacts but they're suddenly merged with my mom's. i looked up this question on google and it says we might be sharing the same icloud. i end up untoggling both of our contacts in icloud so they don't sync but they did anyways. i asked my mom if we share the same account but she says no. i'm not sure what to do, i don't know if i should just manually delete her contacts off my macbook, but i don't want it to end up syncing more and it deletes of hers too. how do i fix this?
MacBook Air 13″, macOS 11.2