xfinity mobile incentive

My husband I switched from Verizon to Xfinity Mobile in late November 2025.  The salesperson told us we would receive $500 per line for switching from Verizon to Xfinity Mobile.  Now, we are being told that is untrue and we MAY be eligible for a $200 VISA card per line but not the $500 we were promised at the time of the sale.  Sounds like false advertisement to me.  I would not have switched from Verizon had I known Xfinity used such tactics.  I am reading on-line that this is common practice for Xfinity.  I am very disappointed as I have been using Xfinity cable internet for 15 years.  I have called Xfinity 6 times about this situation, and I am told to call a different number only to be referred back to customer service.  It's a vicious circle of customer avoidance.  Very poor customer service.  I will stay with Xfinity until I am able to make a switch to a new mobile and ISP.  Be ware new customers.