My personal account has changed to a business account. I did not request this change.

[spazshaz]

Unauthorised change to account status.

[kernowlass]

@spazshaz 

There is no automatic way to downgrade a business account to a personal account, you have to contact customer services and they will do that for you.

Click help / contact bottom left of Paypal pages for options available for your country.

Or have you considered contacting Customer Service via Facebook or Twitter?
You can send them a personal message from their facebook or twitter pages.
It's: https://www.facebook.com/PayPal and @AskPayPal for Twitter.