Which department can help give best offer for Verizon business plan?

We have been with Verizon for almost 20 years. We are around 25 lines with Verizon business. They have raised costs year after year, and we have not gotten upgrades in many years when we used to. Most of my employees have older phones and we don’t want to pay out of pocket for a new device. We want to see what Verizon can offer us but nobody seems to be helpful.

What department is best? We spoke to a rep at T-Mobile and they offered us better rates but want to get Verizon to counter offer. Any help appreciated.

So far, I spoke with sales and loyalty. Both weren’t super helpful.