Mistread and Previous Promise

I know that we had an opportunity to provide you with correct information during your last contact and I'm sorry that it didn't happen. I wouldn't want for that to be your lasting impression of us so if you'd allow me, I'm going to correct this now because I'd like to be the reason why you'd recommend T-Mobile again. It's not in our intention to cause you any inconvenience but I know that the previous interaction caused it. We represent T-Mobile and I'd like to change your experience and turn it into a positive one starting now, here's what we're going to do <> I understand that I'm telling you right now is different from what the previous expert advised you. I wanted to correct the mistake that occurred there and apologize that it happened in the first place. This is not the experience that we'd like for you to have with us and I'm working on turning this into a positive one for you by <>