No. Acca insurance does not imply a bettor will be paid the full premium where some choices are right, and others are not. As a matter of fact, a bettor is only refunded to the value of their bets where all selections are correct but one.
If more than one pick is wrong, the bettor is not covered by the Acca insurance. For instance, a bettor plays ten selections on his Acca and loses one. He is not paid the full value of the remaining nine that were correct. Instead, the betting company compensates him with a full refund of his stake as a free bet which can be applied to other events.