Last year when I purchased my iPhone 6plus I chose the One year payment plan of $34 a month, so it would be paid off in one year. That was the most expensive option and shortest option available. My plan is saying it won't be paid off until 20 months?
I believe you misunderstood the Next options. There is no plan that completely pays for the phone in 12 months to my knowledge. I suspect you selected the plan that allows you to upgrade by trading in your phone after 12 payments.
Award for Community Excellence 2019 Achiever* *The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.