Bad customer service from Coricraft and still no resolution since Sep 2020

Good Day, I've been trying to get a resolution from Coricraft with my complaint since September last year and still there is no resolution (4 months ago). I cannot believe a company this large has such terrible customer service. I had purchased a bed base set from Coricraft and I'm having as issue with the mattress which was supp****. Coricraft gave me the contact details to contact their supplier. Where have you heard of this - I purchased from Coricraft but I need to contact their supplier regarding the mattress issue. Since then I have been up and down with the supplier /manufacturer of this mattress. To date the manufacturer has advised I need to liaise back with Coricraft on the finer details and contact the manager of the store. I have contacted their store +-4 weeks ago and still have not received a response from the manager there regarding an outcome. I then contacted the manager there as I was told to liaise with the manager regarding the finer details , only to be told he is not available and I need to send another email . I then sent another email to the store and yes , no response from them as well . I then called the store the morning 14/12/2020 and was told the manager who is apparently dealing with this matter is on another call and will call me back . Of cos , I did not receive a call back . I then called back and was told he is very busy and still busy on the phone and that they escalated my matter to the head office and if I want feedback they can give me the head office number ? I said I could have at least received an update from the manager regarding the status of the query but this was not even done . Its quite sad for me that Coricraft can quickly accept your money for a purchase and be so happy to receive but cannot be that hasty with sorting a valid query. I am so disappointed in the way I'm being treated and how I'm expected to follow up on the query and still there is no finalization on this query. I have contacted Coricraft and the supplier via email again since the 11 Jan 2021 and still no response. Numerous times I have asked for the matter to be escalated - I honestly dont know what to do anymore .