Hello, I've been having issues sending texts to a landline. The person I've been trying to send Texts to tells me that she doesn't get them. Another friend of hers is able to text her landline and he is also with Koodo. I'm using an iPhone SE and I have an unlimited texting plan. I did a little searching online as well, and the general consensus is that I should be able to this. Is this a possible glitch, or is this straight up not included in my plan?