-Validate mobile number [login to view URL] (it should be 0912 345 6789 11 digit starts with 0)
-Validate cash on delivery based on servicable areas in the excel file
-shipping fee is calculated based on province field, if province field is Metro Manila, shipping fee
is 45. If province field is not Metro Manila, shipping fee is 135.
-Dependent option for city and barangay. City depends on province, barangay depends on city.