Vlebazaar — No Refund after order cancelled

Order #70124 for headphones was placed on 27/4/2020 and was cancelled on 28/4/2020 because order was going to take long delivery time, but there is no refund initiated till now, it has been a month. Refund this asap.
Tried to contact their support at [protected] but their support is always shown busy. and they promise to callback, but they don't.
First, they said I will get my refund before 3/5/2020 and after that they are just saying just wait for 2-3 days for a month.This is not acceptable.
Refund the order amount as soon as possible