Makro online shopping promise and can't deliver.

Good day my ordered the James Hendry book last week online and it said delivery in 3 to 5 working days. He then received a sms message saying it would only be delivered in 3 weeks. Totally unacceptable it was for a birthday gift for this Saturday he phoned and spoke to an agent who canceled the order and said I would get an email saying it had been canceled and would get a refund. There has been no email nor sms and this is unacceptable. We then tried the what's app number also useless.