No offense to Jim B and to be honest.
I made a purchased of cellunlockingcodes's unlock code. Just like what Jim mentioned, 22 hours later, I got a email from Lagon saying he needs more information. It is an alert.
So, I replied his email saying given they could not get the job done based on the information them claimed necessary, I decide to cancel the transaction. 8 hours later, I got an email from Paypal, the company refund my money. Even though I have not confirmed on my credit card statement, as I trust Paypal, I believe it is true.
Conclusion: The company coulnd not get the job done for me. But if I respond quickly, I can get my money back.