EOS TOKENS HELP

Hi guys,

So I've had a few EOS token sitting in my myetherwallet for a while now and realised recently that I needed to register them for when the ICO finishes.
I stupidly registered them but didn't write down the public or private keys...is there any way that I can remove/delete the contract that I set up for the registry? Or should I just create a new MEW and send everything to the new one, would this help?

Any help would be appreciated,
Matt