Hisense remotes faulty with no response from customer care

<p>We currently own four tvs from hisense. All of these were bought in roughly the last three years.</p> <p>Recently I have noticed that the on/off button stopped working on the one and then the button to lower the volume also went. And then one after the other the other remotes went. Out of four tvs three remotes are doing this. Battery changes do not help. I'm sure the fourth will follow shortly.</p> <p>I'm extremely annoyed as now I have to go out and purchase three new universal remotes. These are going to cost money that I shouldn't be spending as quite obviously there is a quality issue with the hisense remotes. I have emailed hisense on the 26th March and have recieved absolutely no response?!?</p> <p> </p>