Turkcell Platinum Loyalty Fail

I've been a Turkcell Platinum customer for nearly a decade. As of yesterday, my contract expired. In previous years, they would contact me before my contract ended to offer suitable tariffs and packages, but this year, there has been no outreach whatsoever. I had to call customer service myself to notify them of my expiring contract and inquire about suitable packages, but no personalized assistance was provided. I couldn't find any offers apart from what I saw on the Turkcell app. Why the reluctance to retain customers? Why aren't discounted packages offered to customers? What changed this year that Turkcell is charging prices double those of other operators for similar package contents? Yesterday, before my contract ended, I attempted to purchase the 'Mega 85 GB' package through the app. It was priced at ₺570 for the first three months, but I encountered errors repeatedly and couldn't proceed. When I checked this morning, I saw that the price had increased to ₺600. When I called customer service, they simply said, "It happens, if you want it, it's ₺600." Last year, as a Platinum customer, they offered special packages separate from the app, but this year, even those are gone, and even when we call customer service, we're put on hold for three to five minutes. Where are the dedicated customer representatives for Platinum customers? We used to have direct access to them. I'm currently exploring other operators and considering porting my number. Congratulations on successfully alienating a long-time customer like myself. I wish you continued success.