They seem to do this regardless of whether or not you've visited their site recently. It might be that accessing their (very dubious) android application counts - but I would be surprised if even three were that stupid.
I received numerous texts from this number purporting to be 3 after visiting their website, asking me to respond to a survey about my experience. When I complained to 3 (via their live chat on the website) I was told they never send such texts and it must be spam. Who knows? I have blocked the number. Another strike against the company as far as I'm concerned...
This is not spam. Three what your opinion on their website (Which is a good thing). (I have never had spam from three)
Transcript:
Message 1: From Three: You recently visited Three online and we'd like to ask you 5 quick questions about your experience. All your responses are free of charge.
Message 2: Was this the first time you've used My3 to manage your account online? Reply with a Y for yes or an N for no.
As stated this is three. What I don't understand is why when I try to reply does it say "This may cause charges on your mobile account"
(I'm assuming this is an automatic notification because of the type of number it is)
I'm on Android