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Hello, The documentation mentions the possibility of using full spectrum of Smarty syntax, by taks is to display in the Email for a given Product/Service the Recurring price (monthly) multiplied by e.g. 10 or 12 for upgrade offer. I've tried following: {math equation="price * intercept" price={$service_recurring_amount} - but the issue with double brackets in sytax may occur intercept=12 format="%.2f"} {math equation="price * intercept" price=$service_recurring_amount intercept=12 format="%.2f"} but the amount is not show, but there is also no syntax error for smarty when sending, any ideas how to display Service recurring price x 12?