Fuel pump keeps dying in 2005 Toyota Corolla

I honestly don’t know what my mechanic has done. He never contacted me back from when I initially called them requesting to bring it in, my fuel pump died 4/2020, then the replacement died 11/2020, then THAT replacement died the other day. I remember him mentioning the first time it was replaced in April 2020 that he dropped the tank. From what I’ve been reading the only reason one would have to drop the tank when replacing a fuel pump is to clean the tank. But I’m suspecting the mechanic took me for a spin and did some shady stuff judging by the lack of reliability and him saying only the part was warrantied, not the labor. Probably doesnt mean much but he charged me for 2.5 hours of work for the first replacement, he charged me 3.5 hours of work for the 2nd replacement, but it does show up on my bill for the second replacement for a fuel pump relay.

So as of this moment until I can confirm what he has already done I don’t know for sure, but he billed me for fuel pump and pump relay and said by way of voice he dropped the tank but didnt elaborate much on it.

BTW fun fact, the first time they replaced my fuel pump they forgot to attach the paddle that gauges fuel, I found out cuz he was like “HEY MAKE SURE TO PUT FUEL IN YOUR CAR” and I was like “Oh did you have to dump the fuel?” and he said “Um no?” and I was like…“Bruh, I literally have a full tank, car died right after I filled it to full” then he was like “Well just in case fill up again”. Sure enough the dash said I was under E I got a $1.50 in before it clicked saying full… lmao…so they had to redo it. So that was probably a foreshadowing of the shenanigans that were to come

I personally have not dropped and cleaned the tank because my car died in a walmart parking lot and I’m not equiped to handle hazardous waste and I have a decent car jack and jack stands but it’s more for changing tires then lifting a car. I dont have chock blocks either… My goal was to get it working and to limp it somewhere where they could drop and clean the tank if necessary