Mswipe not give this swipe device science 22-aug-2019 till date

I ordered machine on 22-aug-2019 but not receive till date, I am call to local representative but not answer. And email on help desk but not replay my mail. I don’t want purchase mswip machine and please refund my amount back.for three days mail to helpdesk but not replied. I give them invoice number in help line number but not replayed yet.