[jacquesm]

It was merely meant as an illustration of why some people hold 'conversations' on twitter. The provider is Vodafone.

[tweakerbee]

One simple solution: send them an old school registered letter. They'll have to read it, or at least sign for it. In that letter you can let them know how displeased you are, and announce that you will a) continue to send registered letters and b) will change telco as soon as you can.

[scrollaway]

Not so much a solution or even a workaround, more of a way to take a stand.