On Airtv unprofessional

This company called my wife, offering an explora decoder which they delivered on the 24 Dec 2024,as they couldn't send installer which they said it's part of the package I start to have doubts with them, I called on the 27th December 2024,asking to cancel. But the lady said she will escalate the matter. The following day, I called again the lady I get is another who ignored my concern instead she gives me a list of installers to call for appointments, those people told me that they don't do anymore work for on airtv as they owe them lot of monies. I have been calling, instead I get some who will keep me waiting till I run out of airtime. I started to send emails and instructing them to come fetch their decoder, as it's still sealed but they send me from pillar to post.. They keep on sending my wife threads messages on cellphone,telling her to make payment..i ask payment for what, as they did nothing up to now, their decoder is not connected, is still sealed not opened?