If the odds change when you're placing a bet, STOP! 

If the back odds change before you have placed the bet, you will need to go back to the calculator and update the back odds. If you're happy with the qualifying loss/profit that the calculator is showing then you can proceed with the bet.

If the back odds change and are now too low to qualify for the offer, then you'll need to go back to the Oddsmatcher and pick another bet to ensure you get your free bet. 

If you have placed the back bet and the lay odds have changed, go back to the calculator and change the lay odds. When you update the lay odds you will get a new, accurate lay stake to use at the new lay odds. 

If you're unsure how to fix an issue like this, please Contact Us and we can help.