No delivery & then no Customer support

Ordered a Yoco device weeks ago, after paying it was like they've disappeared, and it seems to be a common trend. Device wasn't delivered until i posted on social media, subsequently 2 devices were delivered and i had to make myself availible on both occasions. And yet still no response from Yoco, after i requested this service be cancelled and a refund. I'm sitting with 2 non-active devices and no response from Yoco on any platform. I guess you get what you pay for with Yoco.