Some retailers offer plans that have prices fixed for a duration period, most commonly 12 months.
After the fixed price duration period expires, the price for the plan may change.
Price fix is different to the more common 'Fixed benefit period' which applies to benefits like discounts that are often included in a market offer.
Under a Price fix, or Fixed Price offer, the rates will not change within the period.
Under a Fixed benefit period offer, the rates may change, but the discount or other benefit offered with that plan will not change