A merchant sells a product on credit for S/ 50,000 and offers to pay it to a client in three bills of equal nominal value and with maturities at 45, 75 and 105 days respectively, applying on them an APR of 30% with bimonthly capitalization. If this merchant plans to discount the bills in a bank 15 days after the sale is made, being the effective discount rate 2% per month, find:

1. The face value of the bills.
2. The net cash value received on discounting the bills.
3. Calculate the discount.