WORST SERVICE EVER

So I went to Samsung pavilion in December to buy a washing machine (the 2 in 1), a stove and oven hob, dishwasher and a refrigerator with each product I was promised a R4000 gift voucher I registered for them and have yet to receive them.. I went to Samsung 1st week of Feb as my washing machine ain't drying or spinning the clothes dry anymore the lady that sold the stuff to me said she will take it up on Friday last week I got a call they guy would get someone to come out n have yet to hear from them my washing is now almost at the roof and I'm still waiting.. When I bought it to the ladies attention I have yet gotten my vouchers she says it's not a Samsung problem I have to contact another number I call the number but can never get thru I have emailed them as well and yet again haven't heard anything from them I'm really finding it as they where more then happy to help us when we wer buying the stuff once we got the products was like they not interested in helping us I am in need to buy more products but unfortunately SAMSUNG PAVILION WILL NOT SEE MY MONEY