Renew is irreversible, you cannot revert it. Turn off autorenew if you don't want similar surprises in the future. You can contact them via chat or ticket but it will not change anything.
Thank you, I contacted support, and they informed me that a refund is possible, as long as 5 days have not passed. Deleting the domain will be sufficient for them to process the refund
Hi,
If they delete the name you will lose it completely, and not be able to transfer it to where you would like to renew it. I would double-check this with SAV.