Billing issue

A couple of day ago, I received an email from Xfinity, stating that my promotion was due to expired in Jun. On or about 14:10 hours, 28 May 2024 I went to Xfinity office located at 5910 Barnes Rd, Colorado Springs, CO, and took my May bill to discuss possible promotions that I could be eligible to use. I spoke with a gentleman named Luke who after reviewing my information on is computer, he informed me that there was a plan that included extending my contract for a year while keeping the “Same Price.” Since the billing that I presented shows a bill or $100.68 it was my understanding that the same amount was going to be in future bills (during the next 12 months). Later the same day, I received and email stating “Your Updated Service is confirmed, ” that shows: an estimated monthly bill of $100.68 (same as previous bills). A few days later I received a bill for $119.36. I went back to the Xfinity office on Monday 10 Jun at o/a 1020 hours and spoke with Mr. Kaleb who informed me that he did not see my account paying $100.68 but $120 (+), and when I explained my previous conversation with Mr. Luke he told me that he (Mr. Luke) was mistaking because my discount for having the phones with them had expired, but to speak with him. After a few minutes I spoke with Mr. Luke who told me that “technically” the bill was the same and without the discount, my bill would be around $140(+). Two issues come into question: (1)- During my first visit and while looking at my bill for $100.60 he stated that my bill was going to be the same if I extended for one year. (2)- the email that I received on May 28 shows a estimated Monthly bill of $100.68. At no time during my first visit was mentioned anything about telephone discount. I was so frustrated this morning that I told Mr. Luke that then what he had mentioned before was a lie, but he repeated that it was not a lie because “technically it was the same. $100.68 and $119.36 are not the same.