Bad experience, assistance that always sends you a...

Bad experience, assistance that always sends you appointments that never come. Assembly errors solved after several phone calls, assembly carried out quickly and quickly, as soon as the assembly was finished the filter was leaking because it had already failed and was always replaced after several calls, also I am still waiting for the test and the sticker that still is not they performed, the testing was included in the price and in the contract! Every time I phone, they tell me to call back immediately, but they don't call back on time and I'm still without a badge and without testing ... absurd ... I strongly advise against