Check your wording of annual subscriptions

Just received your invite to try Identity protection. For Multi year subs you have worded it that after the offer period the reverting annual sub id not a one year amount per year, but that for multi-years the annual rate will be to charge per year the annual amount TIMES the number of years !!! I know it is a mistake, but I am not going to sign up to a mistake which could in theory be legally enforceable !!