Bowing to high fuel prices, UPS will change its policies on parcel service guarantees next month and no longer include the fuel surcharge in its refunds to customers.

The shift effective Sept. 2 means UPS will only refund the basic charge and whatever other accessorial charges were included in the bill, including pickup and special service charges.

"While nothing changes the ability of our customers to request a refund of shipping charges, we do still make the delivery," a UPS spokesman said. "So since we still make the delivery, including fueling the truck to get it there, we are going to stop refunding the fuel surcharge fee."

UPS adds 10.25 percent to its ground parcel bills as a fuel surcharge and will raise that rate to 10.5 percent Sept. 1. The fuel surcharge for air and international package shipments is 34.5 percent.