Vodacom just can't get it right!

Today, yet again, I have received an sms telling me that Vodacom cannot send me my e-statement, as my email address is incorrect. I get this sms every few months, and every few months I reply it with the correct email address. Then I get the statement emailed for a few months, and then I get the sms saying they have the incorrect email!!!! Why do you keep reverting to my old email address??????<br> <br> <br> Also, their app sucks big time!! It is of no use to me as it always crashes or is \temporarily offline"<br> <br> I can't wait for my contract to finish so I can move to a better service provider...<br> <br> """