Refund on return

I now have no other choice to write my compliant as i have given many opportunities by phoning your agents myself to inquire about the status of my refund which was requested on 16 April, i have probably phoned 10 times already and each time i get told that they will track the status and phone me back and surprise each time i believe your agents and it doesn't happen!!! How difficult can it be and what upsets me most is that you are suppose to be client centric and keep telling me that i will get a call and i have to phone in myself!!! I have made many purchases and this is the returned treatment i receive. I have spoke to so many agents that i can name them should you like. Can somebody actually get back to me about this eventually - this is seriously not good service and in contravention with Treating customers fairly!