Cannot write a review, 5 technicians haven't solved the software issue

I bought this x16 5 months ago and from the beginning, I had this sleep and wake-up issue. One technician fooled me by changing the turn-off hard drive time 1->9999 mins. And had me not to return although there was a serious problem. And the problem is still there and I usually use sleep mode while I am on a project, and it erases all work on programs and files reset my works. I have reset OS as a technician asked, and the window problem is still there and another technician ask me a flash drive setup. Haha how many work days should I waste? They will not allow a RETURN this product and NOT SOLVING the issue. NO DELL, NO PREMIUM SUPPORT.

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