How to Apply Adword Voucher without Credit Card

Is it possible to use the voucher to advertise in google adwords without credit card? I have got the voucher for advertisement in google adwords for two times but both the voucher requires the detail of credit card, unfortunately I don't have the credit card. Is that possible to use it with debit card?
The first adwords voucher is emailed but this second voucher is manually send by post. It is strange that google uses offline media to contact the adsense publisher. The voucher is worthy of Rp400.000. I think if I can use it, the voucher from adwords will drive a lot traffics to my blogs. But It needs credit card, it seems the voucher will not be executed.

My Adsense Earns $16 Today

If Adsense kept on earning over $16 a day, it would be very good earning from online activity. This month I have been trying hard to increase earning from adsense. Last month my earning stayed average $5 a day. This month it increases up to average $10 a day.
I had not displayed adsense for link for along time. I thought that it had very low earning. The I noticed in my earning report that the adsense for link channel often appeared though I was not displaying it all. After that I just want to placed it again and surprisingly, though I am not so sure because of that, my earning increase significantly due to adsense ecpm and ctr increase.
Keeping on resulting $10 a day is satisfactory enough for me, since I am is not so good in online business. However today Adsense makes me very happy, it earns $16.23. I wish it earned over 16 daily he.. he..