I fear that you have to buy a purchase for Securitycheck Pro J3x. The option to upgrade/renew your subscriptions is available under My account --> My Profile --> My subscriptions only when you have an active subscription.
I have sent you an email with a fantastic discount to get it. Please, check your email!
I'm not asking for a subscription option for both versions. Maybe, I should ask this, does the J3 subscription support J2.5/J3 versions? If not, at one point during the Joomla upgrade process to v3.x, there was a version a of Security Check Pro that worked both for J2.5 and V3. What version was that? I'll subscribe to SCP J3, is that version available?