The best way to purchase 0patch licenses (as many as you need) is to create an account in 0patch Central, login, and press the BUY NOW or ADD SUBSCRIPTION button in the upper right corner of the Billing page. Then select the subscription plan (PRO or Enterprise) and billing cycle (yearly or monthly) and press BUY NOW to select the number of licenses and provide the payment method. Supported payment methods on the purchase form are credit card and PayPal.
If you want, you can provide the purchase order (PO) number in the process.
Successfully purchased licenses will appear under the SUBSCRIPTIONS tab, and issued invoices under the INVOICES tab.
If you just want to add some licenses to an existing subscription, please see this article.
For quantities of 100 licenses or more, we can issue you a quote in form of a proforma invoice so you can make a wire payment. If you wish that, please contact firstname.lastname@example.org and provide the full address of your company, plus your VAT ID if based in EU.
Note that 0patch licenses are subscription-based and have to be renewed after they expire in order to continue having PRO micropatches applied.