...when I was interviewed my Work Visit Visa (8 months validity - where RP is not stamped and Qatar ID Card is not issued)was processed in 3 - 4 days time...
..whereas after I came this 8 months Work Visit Visa was cancelled and a proper Work Visa was applied n issued for me whereby a RP Visa was stamped in my passport and a
work ID Card was also issued.

sometimes some companies have exhausted their bulk visas and so they cannot apply n have a visa issued...and so
then it takes time...coz they would apply for bulk visa ....internally company management approval would take time.....and then for approval for bulk visa formalities....and then your work visa application...so it does take time.......

OR IT IS LIKELY THAT THEY HAVE FOUND A REPLACEMENT FOR YOU...FOR CHEAPER CTC...BUT THIS HAPPENS WITH UNPROFESSIONAL ORGANISATIONS..

SO JUST SIT BACK WITH CROSSED FINGERS N WAIT....AT THE SAME TIME...TRY APPLYING ELSEWHERE....GOOD LUCK