Here's my personal story. I'm wondering if people here who have been approved but not received EAD have tried speaking to their HR departments? I have already provided my HR department with a screenshot showing that my EAD has been renewed and provided them a copy of the 821D notice (obtained from ELIS through PDF) and they are completely fine with it! If you have been approved, you should really try to drill this in the heads of the HR department that your EAD has been renewed.