DSV - Rude employees

Good evening I'll would like to report Nonstikelelo or Nompumelelo I'm not sure what her name is but I called around 14:34 today asking her to check if its still possible to Change the address of the delivery since I'm not longer working tomorrow because I wrote my work address only to find out that I'm off tomorrow and the lady said its okay I'll check for you in the meantime you can hold on to the line for me... After sometime she said My parcel is now giving her another date which Is Friday instead of receiving its tomorrow and I said Its fine then don't change the address I'll go and wait by my work place tomorrow for the delivery guy, and she said I've already cancelled your order but let me see if I can still change it for Wednesday which is tomorrow... And she said she can't now because tomorrow is fully booked and Thursday is a holiday...
I asked her Mam who said cancel my order because I only asked you to check if you can still change the address not to cancel my order if you couldn't you should have told me instead of cancelling my order because I didn't ask you and she gave me a lot of attitude asking me how was she gonna check without cancelling the order and I asked her if I was supposed to assume that in order for her to check she needs to cancel my order was didn't she tell me first because that's her job and she knows how the system works now what's must happen because I want my parcel by tomorrow not Friday because now she is shifting her fault to me and I'm really not sure if that how she was taught to speak to customers like that I would really appreciate it if I can get my parcel by tomorrow or else I will take this matter to a higher level.