From what I heard from the tax advocate, you should not refile until you hear from the IRS about what the problem is. Not sure what you mean about no record of your claim - where are you looking and what do you see on Where's My Refund?
Apparently our tax laws are such that the customer service people at IRS and tax advocacy office are not legally allowed to tell us what's going on! I feel for everyone answering those phones right now. Literally getting yelled at all day by people who want their money. And it's not their fault. And some of them are probably waiting for their money, too. (Though I guess that if you work for the IRS you probably already figured out not to use TT...)
