Bad Customer service

I purchased a 2 Litre milk, however before the expiry date the milk curdled. I then called spring meadow dairies. Lodged my complaint around the 25th October 2022. On 27th October 22 received a call from Allison explaining what may have happened and they only do efts once a month and I must send my bank details. Which I did on 28th October 22. In the meantime I still supported them by buying another 2 Litre milk. Also curdled long before expiry. On the 5th November still did not rec credit for my first complain. I sent an email with the second complain. On 7th I phoned and spoke to Nandi who is Allison's supervisor. I then received eft for the first complain. (2 weeks ltr) Then Nandi said that they will not be credited me for my second complain, she will have her manager call me. A few days later a Mr Moodley called me and said that they will not be credited me coz its customer abuse. Which too me is ridiculous coz it's a R30.00 and I have spent more in phone calls to them. Bad customer service.