Poor Whirlpool sevice

I have purchased a 600mm Whirlpool gas hob online from Makro. After installation of the appliance, it did not function correctly. I called the Whirlpool call centre who promised that a technician will attend to my problem. I sent all the requested documents. No response urged me to call again, and again I received an apology for the inconvenience and promise to send support. After 6 weeks and many calls with no support, I contacted Makro and the product was returned for a credit.(thank you Makro) Whirlpool products cannot be faulted, but service was really dissapointing. Promises without any action.