I prefer using part of a tree to receiving a text message

Firing an email off to Vodafone, after they told me via text (sic):

From 17May we're improving our systems for u.There may be delays in bills, plan changes & balances.See vodafone.co.nz/changes or the letter to yr biz next week

   Now, I respect the right of people to use cells. Secondly, I believe cellphones are necessarily evils in emergencies, or for those parents who want to be reached by their children. I, personally, have found them useful in courting. But I do not see any necessity for them in any other context, certainly not for my working environment when I am in my city.
   But do not send me coded messages that I have to decipher! Thus:

Ladies and Gentlemen:

Two things, both related.
   I know you’ve some changes ahead with your system upgrade. But you don’t need to text me [number censored] about it. Unless you are prepared to text in English (you know, where the pronoun is you, not U; where there are spaces after full stops—that crazy stuff which makes messages comprehensible). 
   But to be really honest, I’d just rather not hear from you through a cellphone at all, when your letter of the 11th does the same job.
   If you could, please just keep me on your paper mailing list. I detest cellphones, and I see them only as an occasional evil where I am forced to make calls when travelling. The last thing I want is for a cellphone to be an advertising medium, when I do not permit that with my regular telephone.
   Secondly, I note that when you texted me with news of this system change, I could not reply or see your number. Please can you modify my settings accordingly? I have no wish for people to know my number, otherwise they will begin replying to or calling me on it.
   I have been told by your people that putting 0197 in front of numbers will hide mine, but I have tried this with text messages, and none of them will go through.
   If it's at all possible, a blanket hiding of my number to all and sundry would be ideal, please. I could find no setting on the phone to do this, so I assume this is done on your end.

Thank you,

Sincerely,

Jack Yan

   If email wasn’t full of spam that could be filtered out, then I would have suggested they email me with changes, but I doubt I would receive their messages.