Pick 'n pay ASAP - the worst online shopping APP

I ordered on the Pick 'n Pay ASAP app around 9 in the morning and when they kept postponing the delivery time , I called their call center and spoke to Nedine to cancel my order which she told me it was done. Around 6, they tried to deliver the cancelled order which I declined and to date I have been calling the call centre and have spoken to several agents about my refund and to date, 8 days later I still have not received my money. My query was escalated to the manager, Randall Myburgh by Bongiswa Gwele who promised that he will deal with my query personally but I have not received a single response from the said manager - he ignores my emails. I am very dissapointed and will never order from them ever again