Enraged!!

I booked a flight on the 03rd May 2021 around 23:00 but never received a booking confirmation. I called in the following day and I was told that my booking was cancelled and my money will be back in my bank account within 24 hours. Because my booking was cancelled I had to make a second booking which I did with Kevin who was very helpful. 48hr passed and my money was still not in my bank account. I called refunds and I was told to send proof of payment which I did on the 06 of May. NO ONE responded to my email, I had to call to inquire about my refund I was told it will be resolved in 48hr and that was on the 12 May, 11 days after I was told it will be resolved in 24hr. I called again today and spoke to Chantel Mclean who was very rude on the phone, bare in mind this Chantel is the very same person I spoke with on 12 of May. She dropped the phone on my ear and when I called back she put me on hold. Imagine getting such treatment after patiently waiting for a refund. I am highly disappointed and enraged. I demand phone call from Chantel apologising, I don't want an apology from anybody else but her as she is the one who was rude.