Are the Wix promotional vouchers renewable?
No, the promotional vouchers are free gifts which come with new purchases and are available for one time use only. New vouchers are not provided when renewing your premium plan.
Keep in mind that your vouchers are not transferable and each voucher has an expiration date.
To check the expiration date: Sign in to your Wix account > at the top right of the page, hover over the user panel > click Vouchers > under Valid Until, see the expiration date.