Poor service

I placed an order on the on the 3rd of August for delivery on the 4th, order never arrived. I asked for the order to be cancelled. It was cancelled and I was told that my vouchers that I had used were going to be reactivated so I can use them again. I have been chasing after OneCart, sending emails and calling from the 4th and up until today, I have not been helped. On Friday afternoon I was told that there is only one person who does reactivations and they had already left and since it was a long weekend, my vouchers were going to be reactivated on Tuesday when they get back. I sent an email yesterday to Colleen who I had been sending emails to and I got no response from her, called and got through to her and she tells me that the reactivations person has been in a meeting from 10 and will only be done at 14:30 and she will get back to me then. Well, guess what? NOBODY got back to me. It is now Wednesday, an entire week later and I have not been assisted.