Dell Latitude 3520 15-inch (2020) - Core i5-1135G7 - 16GB - SSD 256 GB QWERTY - English

I like this company and what they offer, and at first the computer seemed to be working fine. But I have come across problems with the computer I bought: 1- the built-in microphone does not work; a Dell diagnostic showed me it was a hardware problem; 2- I tried to return the computer to have it repaired, before doing so I tried to reset the computer as requested by backmarket. However it is impossible to reset the computer, instead I receive this message: "could not find the recovery environment"; 3- I could not find a contact number to advise on what I should do; 4- Of less importance, when watching films/ videos, the colours do not seem right. Again I have failed to fix this issue. All these issues have been very time consuming, not what was expecting from a new computer. The reason why I haven't put a worse rating is that I have had not issues with previous purchases.