Hi @Anonymous User
You should be able to run the one week sports pass in conjunction with the month mobile pass.
Have a read of this.
If you are seeking a refund for the mobile pass, then firstly cancel the pass by going to My Account > Passes & Vouchers whilst logged in on here and follow all the steps on screen (approx 4 steps) to cancel the mobile pass.
Then pop over to live chat and explain to them what's happened and see if they will offer you a refund for the mobile month pass.
To reach live chat click on the blue Get in Touch button on the above link, then select a category, then pick a topic, then move towards the bottom of the screen page and click the green arrow underneath Get in Touch to reveal the live chat button.