How long do BING COUPON Take to activate on account?

I have added a $50 coupon to my bing ads account yesterday and my account balance has not updated,

I purchased the coupon off someone who must of generated it, Does anyone else use bought coupons and can you let me know how long you wait?

I thought it should be straight away, I do not want to leave a good review for the coupon until it has worked >.<

You must wait atleast 3 days, Generally they activate in 2 days but some time take more time.

Not straight away, but in my experience it takes less than 24 hours to update your balance.

yeah what they all said , it varies, 1-2hours