Delivery date too long

Ordered and paid for my tv box on 01 June. Expected date for delivery was 10 June 2020. I've been trying to track progress on the App, but status kept saying "not shipped yet". Today, I see a message that shipment took longer than expected, with the new date being 15 June.

15 days.... This is too long and unacceptable. Without communication. And I cannot even phone your company. Self help options feel like you're chasing your own tail.

Disappointed with this.