Shocking Customer Service - DHL

The worst customer service I have ever in my life come across. I have been trying since the 20th November 2020 to get a parcel collected and each time I have confirmation via telephone it will be done only to have to call again the next day and the next day and the next day with absolute no happiness. It is Wednesday 25th November and still the parcel has not been collected and that is after spending nearly an hour on the phone yesterday and having a confirmation that the driver will collect today. Now after 23 minutes on the phone the driver told the DHL agent that he only received the collection advise just now and will therefore only collect the parcel tomorrow nearly a week since I put in my collection request. Complaining on the DHL website is just as useless. Our company luckily does not use DHL and the only reason we are using DHL or trying to is that our customer is paying for the parcel shipment and they have an account with DHL.