Appalling service on upgrade

I pre-ordered the Samsung Galaxy Note 9 with MTN, on an upgrade of my contract. I was advised it would be delivered in 3-4 working days. 1.It took +-2 weeks to be delivered 2.The color delivered was Black,instead of the Blue requested. 3.I Sent a mail to the Sales person, who assisted me with the upgrade, 3 days still no response 4.I called the Sales department at head office,they said the return will take up to 4 weeks and Naydene will call me back on. Still no response. 5. I followed up with and email to customer services. Standard response, 24 hours later and still no response.

I have 5 contracts for my family with MTN. Service in the past was decent

This however is just appalling from MTN.