Hathway Cable & Datacom — harassing to return the device that I don't have

Address:

560085

In June-July 2018 was about to shift my house and wanted my hathway connection to be relocated I raised a help ticket. A engineer had visited and took the device saying it will be relocated. I didn't think twice as it might be the norm that they take the device. The connection was never relocated. Now they want me to submit the device back.