Motorcar concepts Kirkman Get you in a car with major issues Orlando Florida

I bought a 2007 acrua Rdx on August 29 first lie the price online was 14997 when I got there they said they had to bump it to  18997 since it was I. House finance , while test driving the car.... The engine light was on and Mac said they will fix it if I boguht it. Upon working the deal another car saleman said 2000down and 245 bwkly and I ask and you will fix the engine light he said yes. When signing the contact they jump the bwkly payment to 268 but I was fine with it. On sept 2 I took the car to the Apopa location and gave it to Wayne, he said he would clear the engine light and if it came back on he can see what it is, I told him I already took it to autozone and it was the catalyst converter bank 1 . He said ok ill order the part..... Two weeks went by and I called and he forgot about it and said bring it in, I brought it back in on sept 16  and guess what they did clear the light again and lied and said he change the censor that night when the engine light came back on I took it to autozone and it was the same code , I took it back the 17th and Wayne said oh we have to wait for the part, at this time it's three weeks in and they only give you 30days to fix any issues. I took it back on the 20th and Wayne said he changed the oxygen censor , when I ask him why did he do that when it's clear the car is breathing right I told him it's a muffler clog bc one of the mufflers is not breathing, he said no it was the cencor, that night the engine came on again, this time I took it to acrua and they gave the same code, the catalyst converter bank 1 basically what I already said there is a clog in the muffler , the tech said they will have to remove the muffler to fix the isuse it is NOT a censor. So Saturday I called motor car concept in Apoka and spoke to scott who said just bring it back on Monday. What these ppl don't realize is that th engine is working over time to breath bc of this clog and I filling the gas tank 3x a week. But I'm not the average customer I will and can return the car and do a charge back with my bank since I work for the bank and just go else where and get a vehicle . I have it writting that they would fix the engine issue with th contract so it was not word of mouth. I will take it back it back to them on Monday and see the outcome but I will not loose out. Motorcar concepts does bad business