Incorrectly invoiced by Wesbank Vehicle Finance

I would like to query an incorrect invoice on my vehicle contract that I signed with Wesbank at Mazda Fury in Fourways. I’ve looked at my contract and noticed that I was charged for a delivery fee of R5985 for a vehicle that I collected myself from the dealership. I was also charged R4000 for Profusion Bodyline Maintenance, another service that I never received. Please assist with this refund claim as I was incorrectly quoted and charged for services that I was never offered. I write an email to service@wesbank almost 2 months ago and I still have no response.