Business ProfileforDelta Transmissions (Patchogue)

I went to delta transmissions to diagnose a problem with my transmission. They told me they could only diagnose the problem by taking out the transition. They told me the cost of taking the transmission out, diagnosing the problem, and putting the transmission back would be $980. After they took the transmission out they said the cost of repair would be $3,500. I couldnt pay that so I told them to put the transmission back and Id pay the $980. They refused to put the transmission back because it needed repairs. I said I cant pay for the repairs there but they refused to put it back regardless. They then told me the cost would change from $980 to $1,500. I told them Ill only pay half the original cost because they only did half the work and they paid the price but they started a problem. I tried to make a deal with them and just let them keep the car which is worth around $1,000 but they still wanted me to $500, which is again more than the original price. They held my car and the belongings I had in the car hostage even though thats illegal. I tried going in person to resolve the issue and they started insulting me, my father in law, and my girlfriend. We never signed anything so they just kept raising prices. When we requested to view the work order they only showed it to us for a second and then they ripped it away. I had to call the cops and the police mediated the situation but they still havent given me my belongings back which again is illegal. The belongings in the car are separate from the job. This place has multiple bad reviews on ****** and help having similar/identical problems. This needs to be addressed. We filed a police report and we have it if necessary.