bad client service

I returned a good solo close couple suite on the 17/02 and was promised a refund within 3-5 working days , today is 08/03 and I was called to return the credit note which I received for returned goods as there was a confusion . Now I am told I will need to wait another 3-5 working days for refund .Matter was further escalated with customer service and the store on the 04/03/2024.Its now 3 weeks awaiting on the refund . Reference 863216 .Whose not doing there job.