Replace a Strap Missing After a Backpack Repair

You collected your backpack from Cedar Thread Repairs on Tuesday after paying $28 to have its main zip replaced. The new zip works, but the removable chest strap that was attached when you dropped off the bag is missing. You need the backpack for a walking trip on Saturday. You still have the repair receipt and can return to the shop on Thursday after 4 p.m. Mara Bell, the shop owner, handles concerns about completed repairs.