Hello,
Thank you for submitting your request to our support team
Regarding your request, we remind you that your reservation is booked under a non-refundable policy, as indicated in the details of this Experience.
[Moreover, you booked a shared room, and it is mandatory to add your guest and complete your payment. As you know, in a shared room each guest pays half of the price and you have only paid 50% of the room.]
Please let us know as soon as you can if you wish to cancel without refund. At the moment your reservation remains confirmed waiting for your approval. If you keep the reservation active, you will be required to add your guest and complete the payment otherwise you may be billed per the policy.
Regards,