Domino's Pizza — Missing items and delay order

Address:

Katwaria Sarai, Shiv Mandir, F-97, Flat-2C

I have order pizzas on 23rd Feb but some items are missing and I have laid through online so that the store does not pay back my refund money regarding this mistake and never take seriously my issues and also not call back me in anyway. Again I order new pizza on 20th July and it will be mentioned in your app 30 mins pizza delivery guarantee or otherwise refund 300 but again store does not take my complaint seriously and they disconnect my phone so I just want my money valued through this order and I want my money back in anyway