The text said $9,950. The voice read it as "nine dollars ninety-five cents". The fix is to never let a voice agent say numbers as digits.
Add this to the agent's instructions
When you say a price, a number or a date out loud, write it in words. Say "nine thousand, nine hundred fifty dollars", not "$9,950". Say "twenty-four seven", not "24/7". Say phone numbers digit by digit in groups.
Keep prices in one place
Make a table of every price with its spoken version, generated from the same price list your agent uses. If you change a price, the spoken version changes with it.
Test it like a caller
Call it and ask the price. Then compare the transcript text with what you heard. If the text is right and the audio is wrong, the problem is the voice, not your data.
Bonus fix
Mine said "one moment" before every lookup. Ban that and have it say something useful while it checks.