Online order

I had a very bad experience with Makro online on my 1st time. I ordered 30 silver cups they were on special , goods were delivered and received by 3rd party, on my arrival when I see the parcel I could realise that something is wrong, when I check it was indeed not what I have ordered,since I am not technologically competent I asked my sister to requested the goods to be collected for return and they agreed,days went by the was no collect,I called Makro online I was promised that it will be collected and it was never collected,I went to Makro online store in Silver lakes and the guy I found ,called and I again I was asked to update my address and promised that parcels will be collected within 5 working days,it was on the 1st May,parcels never collected,we kept on sending emails and no luck,they said again that we must load the address where goods must be collected,with the help of my sister again the option didn't allowed us,I went again to Makro online again with the aim of leaving them there and the shop assistant made a call again and I was promised that parcels will be collected,to date my parcels were not collected, now I asking hello to help me. The funny part is that when parcel was delivered it was possible but when it a return they don't get to the same address and upon delivery they even called to verify the address but when they have to collect they say the have wrong address,why they didn't call like wise? Please I need your help,I can't stuck with this order,I don't need it.

Furious and frustrated