Perhaps you could introduce a few steps. Doesn't know if this makes sense, but just thinking out loud for your inspiration: Step 1: signup for trial period (no

Perhaps you could introduce a few steps. Doesn't know if this makes sense, but just thinking out loud for your inspiration: Step 1: signup for trial period (no cc asked) After trial period: complete your profile and get 2 more weeks of signup (including your cc) After extra trial period: confirm membership