Citroen sucks

Buy back, yeah shure, recall notifications , no way I bought a Citroen C4 cactus in 2015 and was told that they have a guaranteed buy back policy, there was a call back issued in 2020 for cambelt and tensioner and this was never communicated to me and the cambelt broke R36000 later got the car going , try selling it at cmh Citroen in umhlanga ,they don't buy cars above 100000 km and there was 2 call backs ,never communicated and they don't take responsibility. And they refuse to buy the vehicle with 138000 km on