It's most likely getting locked due to the IP change. If the recoveies were removed within the same week of the sale and you added a new pass + NEW RECOVERIES ( this is what does it ) the Jagex system thinks that someone has hacked it.
It is locked until recovered, the appeals take 3 to 5 days.
Its probably because of a major IP location change. Ie. You're from Europe and the original owner is from USA.

