Apple Watch 8 offer

On 11/27/22  I accepted an offer for an Apple Watch by chat for $10.55 per month plus line charge.  This is the offer I agreed to.  Now they are saying that the Watch is $16.83 per month.  Every time I get a new device I have to fight for the deal I agreed to.  The rep today said they would give me $50 to fix the issue.  The “issue” is worth over $200 to my pocketbook.  I shouldn’t have to accept $50 for rep mistake. I trust that Verizon has reps that will give accurate information.  I want the watch for agreed  upon amount.  This is not unreasonable.  I have been with Verizon for a long time and I should not be held financially responsible for a mistake on Verizon’s end.