Name is not taken but can't be claimed?

Hello,

I recently wanted to buy myself my own minecraft account, I wanted a cool name that fits with me, so I used namemc.com to lookup names, I really like math stuff, I found the name "Oval", namemc.com said it was available so I tried to pick the name "Oval", but it said "Profile name is taken.", wich is very odd.

I personally think this is a bug/glitch in the name filter.

If possible, could this name be unblocked so I could take it?

Thank you very much!

-Ryan