My question involves criminal law for the state of: PA

Ok, so, I served 8 months in jail on an F1. My max time for jailtime was 16 months. I was obviously immediately placed on probation which is a max of 24 months. My probation is being served in a different county from where I was incarcerated and sentenced. It's been that way since day 1. I am unsupervised and I receive a compliance report every three months. The last one I saw stated that my max date is July 25, 2013. I have completed ALL my requirements and terms for probation (i.e. volunteer hours, urine screening, counseling, sup. fees). The only thing incomplete would be restitution, I am on a payment plan. I have a small amount left to pay, but it will take me some time as I am human, an adult, and I have bills. Also, when I calculated my payments from the very beginning of my probation, the amount due monthly surpasses my max date. There would've been no way to really pay in full by my max date without bleeding my resources and starving or going without amenities for a while... so I guess my real big question is - are they going to let me off? And how will I be notified, I am unsupervised - don't even know what my PO looks like.