Disgusting customer service - interns needs to be trained, this is business and we are customers., lets keep it formal and professional

The staff at Engen are just clueless on whats going on. No customer service and any communication whatsoever. Unprofessional credit controller. No email etiquette and professionalism. My account was handed over from one credit controller to the other without notification, like a spoilt bag of rotten potatoes. I was just emailed "For future reference, please send the proof of payment to ......." and since then it has been a rough(er) ride with this graduate trainee who is clueless. My order which was due for delivery was confirmed as delivered on the system but had not arrived onsite. I made a follow up with Customer Centre and then the response was my order does not appear on the schedule for the next 2 days. Your service is really pathetic, train your staff (its great to empower graduates- great job. They need the s****s, training and mostly to be customer orientated) and communicate with the customer. Things do not always go according to plan and your responsibility is to keep us updated of all these changes.