Pathetic service from DHL

I bought and had a parcel shipped the beginning of Dec 2020 and it is still not delivered (25 Jan 2021). Depending which tracking app one uses, the parcel is either in Singapore or London, so basically they don't know where the parcel is. Phoning the help centre is useless as they wont help the recipient - only the sender, even though I am the one who has paid for the shipping and the parcel. Using the email service - the emails go unanswered. There is also no mechanism to escalate the matter to a supervisor and the call centre does not have the ability to escalate to the investigations centre. They really just don't care about ones stuff or the money that one has paid for the parcel. Extremely poor customer service from DHL.