My advise is continue blocking and ignore, storm will eventually pass. For me I speak nicely and calmly, I told him since you no account, why not I meet up with you or u send someone come collect from me straight full amount. Then I gave him coffee shop location which is near a police post (not sure he know anot) then he say he find someone and contact me, that's the last I heard. At these point right if he really set up meeting ur io sure will set up some sort of ambush 1, even if only catching runner. Worked for me, not sure will work for you a not. If you want try, try at ur own discretion.