This, in short, is the general reaction to EE's admission that it might have been charging you for sending an emoji in text messages.
After users had noticed an increase in their bills due to the sending of MMS messages, EE's Content Team issued an explanation:
"If you have an older phone, if you've downloaded a new keyboard app, or if the settings on your phone are set up in a certain way, your phone may convert an SMS that has an emoji in it to a picture message, which may not be included in your plan."
While Unicode emojis won't usually cause a text message (SMS) to convert into an MMS (multimedia messaging service, denoting a message that contains more than text), if you've downloaded your own custom set of emoji, or not set your "smiley" input settings to Unicode, you might be sending picture messages that don't fall in line with your contract allowances.
"This isn't something that EE or any network controls, as it's down to how your device works", EE continues to outline. Many contracts will allow for free, unlimited text messages, but then charge 40p for an MMS message, hence why some customers have seen an increase in their bill. Older Samsung handsets are notorious for doing this.
In order to adjust your settings or find out more about the issue, EE has provided a handy guide on why text messages are converted to picture messages - and how to stop it.