Timing Tensioner problems of the 2007 Honda Accord

I was driving & notice my car was driving a little bit sluggish & kept on getting worse, so I took it in to the dealer they had my car for a week & told me that both cat. Converters had to be replaced, the cause: tensioner leaking & mounts broken, so I paid for work, got my car back but it seemed like they didnâ??t even touch my car because it was driving the same way it was the day I took it to be fixed, I had call the dealer told them & they told me to continue driving & it should go back to normal again, it wasnâ??t even a week later & not only was car losing power while driving, I heard a loud pop noise come from the engine & then car came to a complete stop, also car was leaking oil at the bottom all over the road, had to find away to get it off the road (traffic was busy), when I got it back to the dealer again, they were giving me the run around they had my car for 4 months, & didnâ??t even offer me no means of transportation, I had to pay for the work they done $2000 (powertrain warranty should of covered) the day I got it back the engine was making a ticking noise, so I call them to see if thatâ??s normal, they told me, yes, that it just needed to be broken in, they had replace short block and the some internal parts, since they made think I could trust they're work they did & gave me their word & didnâ??t want to be months with out a car I continue to drive it, constantly having to change oil or add more, now its been a little bit over a year & the ticking noise never went away & things kept getting worse, so I finally took it back in to dealer they have had it for 2weeks now and haven't done anything to my car, not even the recall that was on my car, they called me yesterday telling me that I would have to pay for a whole new engine due to internal damage, due to the work that they had done in the past.