Horrible experience ordering on sixty60

Ordered from checkers on the 18th. There was an issue with payment according to checkers even though money went out of my account. Called checkers they told me to speak to my bank they will refund witching 3 days. Days of back and forth wi th the bank( I have sent a separate complaint) bank says they can’t reverse without checkers bank giving them authorisation. I call sixty60, I tell the lady, she argues with me until I ask to speak to manager. She then comes back (no apology), asks me to send bank statement, I ask her what about authorisation code the bank gave me to give to your bank , she starts arguing again saying it won’t help them. So why did the bank give it to me ? You can’t send my statement to your bank as checkers but that number will help your bank to clear it with my bank. Anyway I logged via email , still waiting for someone to attend to it because it has been over a week of both checkers and the bank playing games with Money that left my account and goods not received. I don’t have an issue with the app but how the issue was handled.