If your company doesn't issue NOC for Liquor permit, Salary certificate will do even it is not address to to QDC but it should be TO WHOM IT MAY CONCERN). If your company doesn't issue to whom it may concern salary certificate. Give your QID to your wife an let your wife apply for liquor permit for sure they will give her 800 Qrs only as limit but of course she needs to get salary certificate from her company.