I had lost my 370 coins when I was trying to expande my training field. Because I have not any fund and it didn’t expande. My fault was trying too much for working it.
Hello & welcome to the World forum.
I'm sorry for your lost coins but just like you said yourself, it was your fault and there is nothing we can do about it. Please be extra careful from now on and next time that you'll run out of income / Club funds you must wait for the next simulation and the new funds to be added on your Club instead of using Boss coins to upgrade anything about your Stadium or pay Doctor , Lawyer , Training players etc.