Repaired item still faulty

My previous complaint refers:<br> <br> http://hellopeter.com/makro/complaints/mellerware-faulty-kettle-***<br> <br> After waiting three full weeks for a repair on a kettle which Makro vehemently refused to replace under the guarantee which is still valid, the item is still faulty.<br> Now after boiling water we need to wait at least 5 minutes before we can boil more water - the item in it's functional state never required this.<br> <br> So essentially, after a HUGE waste of my time, and excuses from Makro, my item is still faulty and I refuse to send it in for repairs again.<br> <br> All I want is an item that works. Clearly the manufacturer is not competent of repairing something this simple, and I not prepared to wait out another result.