Nissan SA and Clearwater pathetic Service

I am regretting buying a nissan on my first service @ Nissan Clearwater I had issues due to my Wesbank voucher and then also my car was not cleaned properly then for the last week I have been trying to get a quote for repairs to my vehicle eventually I get the quote only for another employee their to tell me its the incorrect quote its pathetic now I will have to redo all the Items and get new vouchers as these guys are so ***********. I want someone at nissan South Africa to resolve the issue immediately.