Hi Lyon,
Thanks for providing that information. As your license is provided by a reseller, please use this link to contact support alongside your license key, to avoid any delays: https://www.whmcs.com/resellersupport
If you would like to skip the invoice entirely for one billing cycle, the easiest option is to adjust the Next Due Date under the client's Products/Services tab ahead by 1 month. Then click Save Changes.
Alternatively, if you'd like an invoice to be generated but with a total of 0.00, ten I suggest adding a credit to the client's account of $560: https://docs.whmcs.com/Adding_and_Working_With_Credit#Adding_or_Removing_Client_Credit
WHMCS
