It will take minimum 10 working days for the offer to be released. So when you say two weeks back, if its 10 working days , then you can expect something in next couple of days.Thats the standard process, to have 10 working days for each rounds outcome, if you dont receive any feedback in next 2-3 days, then I suggest checking with your HR contact for this. Dont worry as I have mentioned, 10 working days will be minimum for the offer to be released.