Destroyed Montblanc Briefcase

I took a leather Montblanc briefcase (value approximately R23000) to have it dyed black. Besides the fact that it took a month to eventually get it back, the workmanship was pathetic. Dye on the chrome parts and the Montblanc logo basically completely covered. I expressed my disappointment and discontent and called the ops manager Victoria whilst at the store in Farrarmere Benoni. I was given the assurance that the briefcase would be repaired/ restored and I would ger it back the following Wednesday ( this was Saturday). I called on Thursday and it was still not back but was advised to collect on Friday or Saturday which I did. The logo on the bag has been damaged and practically destroyed making the bag practically worthless!!