Getting Nano Back From Nano/Rai Exchange

Good Morning,

I bought Nano awhile back and stored it on the Nano site. I believe it may have been Raiblocks back then, because I wrote down a seed that has 24 letters. The site isn't active and I have tried importing my 24 letter seed in Natrium but it says "invalid seed". Am I doing something wrong? Most people have suggested I should have a 64 character seed, but I'm certain I was not given a 64 character seed or I would have written it down. I was very meticulous with my records. Any advice would be a huge help.

24 letters or 24 words? Maybe try, as they have the most import options.

Only letters. I'm pretty frustrated that I haven't been able to access my funds. Has anyone else had this problem?

are there also numbers? also are there letters from the alphabet missing or only a certain subset?

24 letters seems a bit short tho.

also what exact site was it, maybe we can find something out