Disable ps4 primary without the primary ps4?

I need help. I tried to set my account to primary and then it was said that it was still primary on another device. I used the "deactivate all" function on my mobile phone and then an error message came up without a code or anything else. When I tried it later on the pc it was said that I had already used this function and that the 6 month cooldown was now active. I still can't put my ps4 on primary. Reset password doesn't help either.

In your place, I would contact the support.