Need serious help, asnwer
 

I have an active adwords account. Recently i used a $25 voucher ( from Hostgator ) and they charged $5 for activation and gave me $20 as credit. Now when i am trying to add funds in to get my ad running, adwords do not allow me to add funds using credit balalance.I have $20 credit in my account...

Their might be some technical issues here though. From what I can see, everything should be working fine. Have you checked with their support team so far? https://imagicon.info/cat/6-4/1.gif