To the person in charge of complaint department

I sent a envelope cosmetic on 14/10 ,Invoice no.458-10841022-4-1826381-7 and receipt no:0401448.Since the date of the transaction made on 3 weeks till now my customer to the destination provided which is already been 3 weeks.I am very concerned about the delivery process up to date.Please kindly check n update me for above-mentioned parcel present situation.Kindly inform me where n to whom i shall refer to check the delivery the delivery status of my said.I herewith thank you in advance for your kind and cooperation for assisting me to settle this small misunderstanding of delay in delivery of my parcel to the stated addressee.
Thank You again,
Regards,

serfany