Bad Service for a customer of 28 years - very disappointed.

I've been with Vodacom since 1996, loyal customer for 28 years. They phoned me last week as I am due to upgrade. It took an our on the phone, did the upgrade, R1899 per month for the Samsung S24 Ultra, downgraded my package, I am happy they are sending my new phone. Followed up on the upgrade today as they were suppose to deliver at the latest today, nothing. Spoke to 4 consultants, upgrade was not processed. Nkosi then search - nothing and NOW all of a sudden the deal is not available today? So Vodacom did not process the upgrade, and sorry mam, no deal for you today? How is that treating your customer fairly AFTER 26 YEARS. MTN gives me a better deal for R1399, but I was willing to stick with Vodacom for R1899? Nkosi was still trying to assist and the line went dead, 40 min in the call. No call back. Thank you Vodacom for not upgrading, looks like after 28 years I am just a number.... BAD SERVICE....for sure.