Customer UNservice

Bought drawers which were duly delivered, as warned, needing to be put together oneself. I actually paid someone to come to do it for me. He followed all instructions (which were NOT easy btw) but the last drawer won't open. I emailed customer service with video and they told me to rebuild. I have indicated this isn't possible. I have emailed three times and they completely ignore me. I even offered to take the drawers to their store to get somone to assist but no response. For a high-end place, the service is appalling. I now am stuck with drawers, that was not cheap (Cielo is not cheap) that isn't fully functional. Totally unimpressed.