Safety boots

I bought items online on the 1st of January 2024 my order was then separated because is not going from the same place ,one order was delivered swiftly.The order one was not delivered when I enquired they sent me an email that the order has been cancelled because they have a problem with a supplier and I will be fully refunded within 5 days ,1p days later I’ve been calling the calcentre everyone is sending me to pillars to post.they don’t want to refund me