The “Best Before” date on your Riverside Spa gift certificate functions as a price guarantee. If you book the service(s) noted on your gift certificate prior to the “best before” date, we guarantee that your gift certificate will cover the entire cost of the noted service(s). If you are unable to use your gift certificate before its “best before” date, there’s no need to worry; the monetary value of your gift certificate will not expire and can be applied to services and/or product of your choice.