I don't want brain cancer

I bought a STENA (Samsung) 40L Microwave from Takealot. I returned it twice due to a faulty door, unusual mechanical sounds and then finally it began interfering with our DSTV reception (we literally could not watch TV when steaming our baby's bottles). <br> <br> I'm no electrical engineer but surely for there to be (new) DSTV signal interruption a decent amount of microwaves need to be escaping from the appliance. After repeated requests with takealot to investigate whether or not we've been exposed to dangerous levels of microwaves (including our infant son who is now 16 months) we've had no contact other than them closing tickets related to our queries. <br> <br> This morning i contacted Samsung (Somerset West Mall) who informed me that they do not know where Takealot source their Samsung microwaves or how their Samsung appliances get repaired. This morning i called Takealot and they seem to indicate repairs are done 'in house'. I'm very unsatisfied with a) their lack of concern towards customer well being, 2) their blase attitude towards quality control, 3) their ignorance towards valid consumer concerns. I don't want to die of brain cancer and I want my son to live a healthy & happy life