Will my credit card get reject if i didnt pay?

will my credit card get reject next time i try to use it. so my credit card payment was due 9-15-09. and I didnt pay yet now am 30 days late in paying the credit card and i use the credit card on 10-10-09 will i be able to use the credit now or will it get rejected

Most likely rejection D:

"charge declined"

you will be able to use it but you will have fees added to your balance