Extremely Unhappy Customer!!

Takealot clearly does not value their customers - constantly getting automated responses on social media as there is no other way of contacting Takealot!!! After numerous messages to them to contact me or resolve my query about a parcel lost in transit last week already which was due for delivery the next day after placing my order. What will it take for someone from this organisation to contact me - after asking for my phone number each time I send them a DM on facebook as they have requested? But still nothing - but a stupid auto-generated message.