Samsung is a joke

It is a pity that minus stars are not provided. Samsung your after sales service is a joke. Liptronics your chosen repair centre is mia. I got a call from them after resorting to social media. I furnished them with the model number and a picture of the part that needed replacing. a week later i get a call from them stating the part has arrived but i must pay before they come and install the part. Based on numerous reports there is. ow way I am prepared to pay the full amount. I stated this to the caller.l, stating I am prepared to oay 50% and once job has been done the remainder. Caller states they would have to get permission to accept proposal. 3 days later not a word. Would you be so kind as to tell where i csn drop off ALL my Samsung products for a full refund.