Bad service

I ordered pizzas online on the 20 March 2023 and when I finished paying then the Ops Manager, Chantel called me to advise that they are not able to deliver in our area. I advised that it's ok I will then go to the store and purchase the pizzas there.i again paid for my order. Chantel advised that I will receive my refund shortly. It is now more than 2 weeks and I am still wait for my money. Chantel gave her cell number however when I try to contact her on the agreed platform she is not responding.