Rent apple enterprise p12 and mobile provision

We are an ios software development company are developing an internal app for an enterprise. Unfortunately, the customer’s apple enterprise account has been applied for for several months, and the account status is still pending. Without enterprise account, we cannot continue to develop and test. Customers are unwilling to spend more waiting time. Therefore, I need to rent a mobile provision and p12 to continue our project. If anyone can help me, I would be very grateful.