BAD SERVICE FROM RAIN

I had cancelled my subscription with Rain since September with Rain.. However in December they decided to debit my account with 3 Instalments.. I have made contact with to advise them that I have cancelled the services and I request them to refund my money back.. They did confirm that thee have made a mistake and they will refund my money back into my account,, They have requested me to send confirm my banking details, which I did. on the 31st of December 2024. It was confirmed that it will take 7 working days for the refund to be processed into my account.. I have been calling and emailing.. It was conformed that my money will be in my account on the 10th of Jan 2025.. Today I was told that my refund was not processed due to lack of stuff in the Billing department.. How the hell is that my problem and now I need to wait another 24 hours for a call from the billing department which they cannot transfer me to speak to them directly.. I'm so disgusted with the service I'm getting from Rain.. I've been send to one person to another with regards to my refund. The only thing they know is to take peoples money.. My Ref no: ***0.. I'm so ****en upset that I'm the one who needs to be calling the whole day.