Hi, I need some one to develop a prestashop´module to do as follow: MY clients place and order but they will pay later, in some days according to the specific user. They might be in groups with certain characteristics, for example customers who pay in 10 days and has a maximum credit of 1000 $, second group 15 days and maximum of 4000 $, others groups can be created. When they pay, allow them to register payment, that can be total paid or partial from one or more invoices. If they don´t pay the invoices before the end date or the day send an email to them telling them they have a pending debt. also if they try to place a new order show them there is a debt on their account. In the back office, I need to check a report of the debts for a specific date, the report might include name, date, ammount and the date of the end of the credit. Allow me as administrator to block an account that hasn´t paid their debts, or that has a debt higher than their credit. I have seen some prestashops modules that has similar functionality but always there are differences. Any doubts please let me know. Keywords: PHP / MySQL