Poor after sales service

As an avid coffee drinker I bought a nespresso Latissma One in April. After using it a few times I was not happy with the airy froth that was being produced by the machine. I went into the nespresso shop in gateway mall and was asked to always ensure cold milk is used. I did so, but still found the same problem. Contacted Nespresso and explained. They were not very helpful on the phone and explained that all settings are preset. I insisted on them checking up the machine. After checking they found everything to be in “order”. I spoke with Elflin and after much convincing requested that I speak with a supervisor. He explained that the supervisor was busy and would call me back the same day or the next. It was been 2 days since. As a customer, I am not satisfied with the machine. I would not mind paying a little extra and getting the Latissma model where one is able to adjust the milk froth amount. Very disappointed with the after sales service. This kind of experience creates a poor image of Nespresso. I expect a call from the supervisor. I will not call back.