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I'm afraid that you can't correct the domain name afterwards. After the purchase your domain will be registered under your name for the time period you chose, and it cannot be changed during that time. The only thing you can do is let it expire, and buy a new domain with the correct name in the meantime.
I'm sorry I don't have better news for you on this matter.
But when I look at your domain names, I can see that the only difference between them is that the word "limited" is abbreviated in the domain name you want to change. Wouldn't it be fine to keep it that way?