Appalling treatment and lack of feedback

I made an online purchase 2 weeks ago from Grandprix Store. Four days later I got the package delivered to me-wrong product was delivered. I told that the item I selected was sold out and I was given an alternative. I don't want an alternative. Within 24hours the package was collected from me-again at the incorrect pick up address and I had to make arrangements to be at that pick up address. It's been a week later, no feedback on my refund. Emails are not answered. This has been the worst experience by far. The attitude received from Delia was appalling-yet she is a manager. I am disgusted. This has been such an inconvenience of note.