Delonghi service centre falls well below standard

Took my coffee machine in to S & H service centre on 17 December 2015 & only got it back more than 3 months later! <br> <br> While t took over 3 months to service the machine, upon getting it back it still has the same problem as it did when it was first handed in for repairs. I contacted Mohammed twice on Monday 11 April & left messages for him to call me back. I'm still waiting for a return call. Even when the machine was being repaired, he never returned calls or called as he said he would. Is this the service Delonghi provides? The previous service centre was far more efficient & professional!<br>