There are two kinds of codes, one for when you want to prepare just one return for yourself, and another where you want to prepare returns for you and your spouse at the same time.

It sounds like you purchased two one-return codes rather than one two-return code.

We can reimburse you for the two one-return codes and provide you with one two-return code via our phone support line: https://support.turbotax.intuit.ca/contact/

Phone lines are very busy today so if you'd like to file today, consider paying for your returns now and calling us later in the week to get reimbursed for the difference in cost.

Note, this a public forum so I've removed your coupon code numbers from your post.