Strange, I've seen the issue of multiple texts, but never an issue of delayed texts from days, week, or months ago. Usually, what happens is the network will try to send a text for 72 hours and if it is unsuccessful it will error out. I'm not sure how you are able to receive texts from anything more than 3 days ago. Anyhoo, shoot me a PM with her phone number and I will create a ticket. Our ticket team will contact her.