Goodyear Bedford Tire and Service Ford Truck oil leak cost me $997.45 for service plus another $300.00 for repairing broken bolts from transmission to bell housing Bedford Texas

I have a 2002  Ford Truck that is leaking oil badly and I asked the mechanic from Goodyear Bedford Tire and service if he can fix it and he showed me an estimated costs and said it is fixable, I left the truck to the shop  and came back the next day after the mechanic called me but it turned out to be disappointing and a nightmare to me because the truck is still leaking oil, i am not satisfied with the service.  I paid $997.45 and additional $300.00 for repairing of the broken bolts.  You could not drive the truck with a bolts broken, so who do you think broke the bolts? the mechanic? go figure.