Please DO NOT redeem more than one voucher on your PC/Tablet/Smartphone, without clearing your browsing history before the 2nd redemption. Alternatively, redeem the 2nd voucher on a different device. Thank you.
The voucher code can sometimes be mistaken for the security code. Please swap the codes. If you still receive an invalid message, check that the letters and numbers are correct:
Please ensure that the security code you enter is not the same as the voucher code.
If you are still having problems, please email firstname.lastname@example.org. your Groupon voucher code, security code and details of the error.