from my LTC account : LLCMHpbw1sDnLHJ9APsnfiWue1rtrPCeJB
To mindtrip account : LMiNDtripSGbBhppDDgXhKGsBm4w6iVN5k
Txid: fd0c8302bdb5a4192b956687aa048429669128e337d68fe65cd06308e1613328
Well it is pretty fucking obvious he has not refunded you from his wallet. I would suggest contacting local law enforcement. He has to know your true identity since he has your mailing address. Good Luck.
btw, it appears you are blocking messages and it could be that he cannot PM you also.
Correct me if I am wrong but I do not see "LLCMHpbw1sDnLHJ9APsnfiWue1rtrPCeJB" having 81 LTC leaving the wallet, but like you said, mindtrip didnt refund anyone. Atleast as far as I can tell, but OP claimed that he refunded hackers, but then claim he didnt then at last claim he did. Honestly, I do not know if this is a scam attempt or if OP really was hacked, but there is no confirmation if it really was hacked or if OP is just speaking bs. Like, what are the odds of someone hacking into an account just for this specific task? Like someone would had to have his passwords and been logged into that account for a long time just for that to happen, but only an admin can confirm if it really was hacked.