Netflorist consultants tell lies

I placed an order for Mother's day flowers to be delivered and paid extra to ensure that delivery would take place before 13:00 on 10 May 2020. I then realised I'd clicked on the wrong delivery address. I spent two days sending emails, trying to get someone to help me on the live chat (dead chat is a better description), and phoning the "help" line. My waiting times on that line were 7 minutes, 10 minutes and 12 minutes, and none of my calls were answered. Then, I was pleasantly surprised to finally get through to the call centre on the morning of the 10th. The consultant was unsure at first, but after a long wait, he assured me that the address had been changed and that my delivery would still take place on that day. Well, it didn't - it was only delivered on the 11th. Complaining to Netflorist and asking for my extra delivery fee back has been met with a refusal. If they had refunded me the measly extra delivery fee with a sincere apology for their consultants who tell lies, I might have used this company again. Now, I'll use anybody but Netflorist.