Some buddies and I split a 20 game plan (4 tix) and through that we were able to get two free tix for Friday night Sox Fest. They have various payment plan options you can pick from (we're on the 10-month plan as returning members, but looks like there's PIF, 50/50, 5 & 8 month options online), but it honestly depends on what's in your budget and how many games you're looking for. You might be best off giving them a call since they can provide you with more definitive answers, but I'd guess that if you commit to a plan that it's not going to be refundable.