Shree Maruti Courier Service — Parcel not delivered to the customer

Hello .. i run a small online business by the name TAREEF SE TARASHA and i dispatched a parcel from SHREE MARUTI COURIER on 17/05/21 from Bareilly to Faridabad. The website says that the parcel is delivered although when i asked the customer she says that she hasnt got the parcel .. The tracking id is [protected]. Kindly help resolve the situation.