Thanks John,

If it's on iMessage, it'll stop sending when it's 3 quarters of the way, so I end up having to send it as a text. Or if I wait it out long enough to see what happens, then the error comes up.

If it's on SMS, there is no error message, it'll look to me as if it's sent but then I find out later it never sent or sent much much later.

& When I'm on wi-fi my phone blows up with texts I never got!

Standard text messaging, not picture.

and cellular data is turned on.