Thank you for your post Bextee and welcome to our community.
When taking this offer did you receive the confirmation email stating this on it? You may begin picking this offer but if you change your package at all during the process before installation then this may move onto a different deal which does not include the credit.
Please check the offer confirmation email and let us know if this was listed as the offer accepted. You can check this on your online account.
Thank you, Emily.