Mivi — Mivi product is not delivered

I have ordered mivi duopodsA25 on 12th September 2021 and made online payment. I received order confirmation and order number which is R[protected]. After 1 days I received mail that my product is misplaced in transit and will be delivered in 2-3 working days it's been 10 days but not delivered yet. Also I didn't get any further information regarding tracking number. I am trying to contact customer support department but they are not responding over a call. So I am emailed that and they are keep saying that they will deliver in 24 hours.