unhappy customer with American swiss

so this is my experience with American Swiss I am so dissatisfied I went to go but my dad a gift at Kolonade American Swiss . I had a feeling that it was going to be too small so I asked them if it was possible to add links to the sterling silver bracelet and they informed me that it was no problem to add links but I would have to do it in January when the main office opens . Last week my dad went to the same shop to add links to the bracelet and they informed him that they were not able to add links because they didn't have any links and refered him to sterns ... they told him they get the same stock as they do . After that I told him to leave it and let me handle it . I phoned American Swiss and they told me it's no problem I can take the bracelet to the closest branch they can send it to the workshop and the workshop will give me a quote and I can decide if I want to accept or decline . Today I went to American Swiss centurion mall to tell them to send it to the workshop. They first told me that I need a slip and I told them I had lost the slip but I can give them proof of payment via my bank statements. After that the lady told me I will have to buy another bracelet to be able to add the links or they could refund me . They then called the kolonade branch to get my slip from where I bought it so they can forward it to the centurion branch so I can get my refund . I went back to work and called the kolonade branch myself to again ask them if I can refund and they said it's fine they will mail the slip to the centurion branch . the kolonade branch found my slip and mailed it to the centurion branch and called me right after to go pick up my refund . I went back to the centurion branch and the lady said she can only refund me R299 for the bracelet because it's all she had in her register (I paid R699 for the bracelet originally ) she said she can only give me the full amount if I have a credit card . Then I said I will come back as soon as they have enough cash in their register . right after another lady came to me and said I cannot have a refund at all because it's not the right slip . I explained to her my situation and showed her my statements with the proof of purchase my card number and date of purchase all she had to say was sorry we WILL NOT help you . now I'm thinking to myself I didn't have so many stories when purchasing the bracelet with them and 3 times people told me either they can fix it or give me a refund when actually all I got is the runaround and unfair customer service. I will for the rest of my life tell anyone I know to never go to American Swiss because they treat their customers unfairly and lie to their clients.