Unacceptable online delivery service while in the interim interest is being charged and delivery fee fir such an appalling service

I purchased 2 jackets on 27th April on my account.psrcel 1 was delivered 3/5 and second delivery was to take place 5/5/23 to no avail.i called on 6/5 was advised ny Parcells will be delivered on 8th.i called at 16he5 on 8th my parcell still at warehouse. Consultant promised to call ne with a update.calked again today still no onstruction from courier they will escalate and advise when it will be delivered with no turn around time I must just wait.Then I asked the ? I pay interest on the outstanding balance but I didn't get the second part of my order and I would also like to add that this purchase is my only outstanding balance and yes I get charged r60 courier fee for bad service.So whats gappening must I just sit and wait till .......