Melting Kettles and Poor Service

I purchased a new Safegas kettle, which is made for use on gas stoves. Upon trying it out for the first time (and using it correctly, of course), before the water started boiling I started smelling burning plastic. By the time the water had boiled it became apparent to me that the lid of the kettle was melting, with plastic particles running down the side of the kettle.

I contacted Safegas about this issue and sent them a picture of what the kettle looked like. Safegas said I should return it to the retailer I purchased it from. I did so and the retailer gave me another Safegas kettle.

Upon trying out the replacement kettle, the same thing happened, the lid melted.

I contacted Safegas about this, and now they said they were worried about what I was reporting since they said they had not had another reports of melting lids. Safegas asked me if I could take pictures of the inside of the lid and send this to them, which I immediately did. I have no doubt any business would be concerned and immediately investigate and take steps to sort things out; and so I was certain that was what Safegas was busy doing and so I left things at that for a while because, no doubt, they were busy with sorting out the issue; however after some time I heard nothing further back from Safegas, not even so much as a 'thank you' for the detailed closeup pictures I spent my time taking for them.

I contacted Safegas again and asked them what I should do now (I was still sitting with a defective kettle). There was no reply (from any of the multiple e-mail recipients I e-mailed inside Safegas.)

I then proceeded to phone Safegas and I was told that someone would get back to me. Someone eventually did e-mail me after that and said I should return the kettle to the retailer for a refund. I wrote back to Safegas saying that, despite the bad batch of kettles I would still like to make use of their product (I have a Safegas kettle I purchased a year ago and it works fine), however there was just 'crickets' again, no reply to me whatsoever again. Due to this I returned the kettle to the retailer for a refund. Safegas obviously are not interested in having me as a customer. Their choice, so be it.