Lack of service at Mellins i.Style Fourways

I returned glasses on the 4th of March because they didn't offer any advantage above the use of normal reading glasses and was promised a speedy refund. It's now 10 days later and I'm still waiting. The optometrist (Rudine) sent me a form to complete on Friday afternoon (11 March - a week later). I was able to complete the form and email it back to her this morning (Monday 14 March), but got a response that she is on leave now. I phoned the branch and was put on hold and then I gave up. No one bothered to phone me back ( I dealt with Truwayne ). I'm disgusted at the lack of service. It's now day 10 after returning the glasses and I have no idea when the refund will happen. Very frustrating and disappointing to say the least. It's only important for Mellins to provide a service if money can be made. Any after care or refunds seems unimportant. Why would I ever want to deal with Mellins again?