Accumalated Rental value more than $300 - 5% off for subsequent order(s)
Accumalated Rental value more than $550 - 10% off for subsequent order(s)
Accumalated Rental value more than $750 - 15% off for subsequent order(s)
Accumalated Rental value more than $1000 - 20% off for subsequent order(s)
Discount capped at 20%.