I submitted some comics for signature series last month. Around the same time my 150 credit for my annual membership was going to run out. I knew that you couldn't put the credit towards signature, only grading. I was rushing to get some new comics graded so I didn't lose the credit. Right before I sent the comics, I got a bill via email for the comics that were signed. It says clearly on the bill ,they deducted the 150 credit off the bill. I'm thinking wow maybe they changed their rules. A few days later my membership was renewed and then I got another bill for the comics that were signed with no sign of the credit. I called and they were confused why I got two bills. I told them if I didn't get a bill saying the 150 credit went towards the signature series, I would of sent the comics in before the deadline. They said they would call back and never did. I sent a few emails and follow up calls. Any thoughts on what to do next. Thanks in advance.