Impossible to rent a movie on Box Office

Box office sends you a link when you want to rent. Once the link is opened and all the required info filled in, you receive an sms with a code. Obviously you need to read the sms to fill in the code, so once you go back to the internet screen to enter it, the page refreshes and you are sent a new code. So you cant enter the code because the page keeps refreshing!!! And I do have a multi window setting on my phone so thats not the problem. This is damn annoying. Obviously you people dont want to make money. Also, we keep being hung up on, or transferred or ignored if we phone your customer care line. I can understand why you dont care because you have the monopoly, but one of these days people are going to be fed up with your nonsense and pay for better wifi so that they can download what they want to watch in stead. Which is what we are going to do the SECOND we get a telephone line set up. You are extremely expensive at the moment because people dont have another choice, but you better step up because pretty soon people are going to realize that they have another option and your gravy-train is going to leave the station.