Awaiting a refund for 3 months. Will not ever recommend shopping through pick n pay online clothing

I have been waiting for a refund for the past 3 months from pick n pay online clothing. Have spoken to the managers during the first month and they apparently do not have the ability to resolve the situation. They have on numerous occasions promised that the refund will be received soon. However it is 3 months later. Have spent over 3 hours on phone calls attempting to escalate the matter, with no one getting back to me for the past month. I have contacted pick n pay head office, pick n pay call centre, pick n pay online clothing department, pick n pay queries, however after the first month or so I have not gotten a call back with regards to my issue, all ports of call have promised someone who is able to handle the matter will get back to me, I'm still however awaiting that, 3 months later. Managers have been left messages by call centre agents to call back and they are avoiding my calls. Should I just take for granted that pick n pay is giving me the run around with no intention of ever refunding me???