Bad service

Last year on the date stated above I purchased a Drew Bed- King XL (DREW-HB-SET-KXL), upon delivery one of the bases was damaged and I reported this matter. Sune Nel is the agent who was dealing with my query, she offered to give me a R2000 voucher for this item which I agreed to take. Now last week I wanted to use the voucher and to my surprise I noticed there is a R635 delivery amount which I had to make if I wanted to utilize the R2000 voucher. I called her and told her what I experienced and she told me that the matter was resolved last year when I accepted the voucher and that I must log another ticket. Now I am a disgruntled customer as she seems not to care about my query and also that I need to pay for delivery to use the voucher. So I asked that if I must pay another delivery fee for the negligence of the deliverers then she must organize that they fetch the damaged base and replace it because I cannot be paying another delivery fee. Either I get to utilize my R2000 voucher with free delivery or you organize to come fetch and replace the damaged base.