⭐ Merited by AdolfinWolf (1)
I mean, am i retarded, or is this letter of garantuee actually a internal letter of garantuee?
I think you are right. 
I never bothered to check their Letter of Guarantee but I don't see how this can be "verifiable" to confirm someone is mixing with the real Smartmixer. In this case, what is even the point of this "LoG"? They don't even have any staked address (At least I couldn't find any). The only addresses are the deposit and receiver ones, and in their website, I can only see the donation address at the bottom.
Quote
11. Guarantee
Before every mixing operation, our clients are committed to download the letter of guarantee. This helps, in case of any issues, which may occur during a mixing operation, to refund the funds sent to our address. In case of any issues, contact the SmartMixer support department via the chat option and attach the letter of guarantee. A refund is excluded without proof of the letter of guarantee.
https://smartmixer.io/en/termsBefore every mixing operation, our clients are committed to download the letter of guarantee. This helps, in case of any issues, which may occur during a mixing operation, to refund the funds sent to our address. In case of any issues, contact the SmartMixer support department via the chat option and attach the letter of guarantee. A refund is excluded without proof of the letter of guarantee.