Defy Microwave allowing ants in - radioactivity risk?

Horrific lack of service from Defy. I bought a Defy microwave on 25/9/2025. Ants are getting into the microwave when it isn't in use - to get to food stored therein. These are not infestations (as claimed by Defy) - the ants aren't living in there they only go in looking for food. My major concern is that if the ants are getting in, what radiation etc. is escaping when the microwave is in use? Defy says that it isn't covered by the warranty "infestation is not covered under warranty, you will be charged a standard call out fee of R690 and spare parts will be charged separately." The unit is clearly defective and under warranty so should be sorted out by Defy at no cost to the customer. My first e-mail went to them in April - they've been ignoring my e-mails since then - maybe waiting for the warranty to expire!