After sales support horrible

I bought a Hisense dishwasher a year ago, on the 10th of September I logged a service request as I kept getting an E2 error. A technician came out a day or two later and a week later he came back with the part. On the 21st of October, I log another request as the dishwasher intermittently gives E2 and E3 errors, technician comes out again and has to order replacement parts.... I have followed up a few times now and no communication - rather stick with the other well known brands - or wash your dishes by hand