Very poor service

I ordered, and after getting feedback with the words delivery "latest Tuesday" but then ignoring further messages not coming back to customer. Although my 1st experience was okay not good, the second item I purchased it seems their service got worse. I understand Tuesday is not done yet, but surely at least since my message of 08h52 this morning, one could respond to it, and give me tracking number. If I need to purchase the device at another retail outlet tomorrow, I will be holding this company via SCC liable not just for refund, but also the costs of the device at the new supplier. They will start to understand the term treating customers fairly.