Poor e-commerce and customer service - Dis-Chem

Poor customer service & delivery times. My 83 year old father ordered a walker online on the 30/4/2020 and was informed delivery would be 7 to 10 days which is understandable during lockdown. After hours of failed attempts to contact Dis-Chem on the phone I mailed them on my fathers behalf on the 15th of May 2020 when they assured me someone would contact me. Today on the 21st of May I have had no response. My father invested half of his monthly pension and was hoping to be able to be mobile yesterday for my daughters 3rd birthday however was unable to as the walker still had not arrived. Do not buy online from Dis -Chem as they have no idea about e-commerce. I own 2 online businesses as well as a full time job and our turn around is 2 days even in lockdown.