When put in reverse or dr it dies

Bought these van and motor mounts was busted so I took it to a mechanic he said he put them on for 60doll I said great also popping was coming from front tire area and wasn't shifting well would get up to 4 rpm trying to shift in gear so I told him I think I bought bad car motor mounts made big diff old last night on test drive it was like that when I woke upall 4 busted bad, told him I should get rid of this van but going to have to fix popping and tranny shifting he said cv 100doll total I said ok let's do it so took it to him when there I ask how much for tranny prob he said needs 1 gear solenoid replaced but couldn't just buy 1st came all 4 316doll I said how much labor gonna be he said about that so I said what 700doll he said yes told him I have to save up for that on way home my mom said she loan me money to fix called told him to fix all while there he said sounds good then he calls says van ready I go to get and he said when put in gear it dies but it drove g

So I couldn't get it paid rest of money he said I don't know why I'm going go back check some things I call u. It still dies he said its valves or torque converter now he said don't do valve so if I could come get told him I don't have trailer he said he would borrow one bring to me he never did now he says I owe 88doll for final bills of work and labor and going to put Leon on it