Disgustful Service

on 17th Jan 2019 had great service delivery from Thelma who gave me brilliant rate on my new vehicle added for 19/01/2019, unfortunately couldnt take delivery on the 19th. but didnt remove vehicle off cover . had my renault clio removed for 19/01/2019 as it was going to be trade in. called Monday had vehicle added again as wasnt sure when this new car was delivered. Now 23/01/2019 called in spoke to Zandi who didnt bother to call me back after line cut as she was investigating my my premium is different , I thought atleast she saw what happened. now I call in spoke to rude individual called Kutloano servicing as she didnt want to listen just wanted to tell me what my premium is as i'm explaining thats the wrong premium. asked for senior consultant who also told me they cant return my premium to what i was given on the 17/01/2019 due to some system rating error ... now i'm really RED. what kind of service am i awaiting to receive at claims stage. not the first time they disappoint anyway...