Grumpy Website

 

Got another spam message in Viber. Two things make me wonder here. First, it says I have subscribed to their services. Well, I haven't. How has it happened that I has been subscribed without any intention from my side?

Second, the UI blurs everything preventing me from reading a message before I answer a question. What a strange behaviour! I'd like to read the message first and than decide whether it worth keeping that contact.

Surely, with 99% probability it is spam, but the program forces me to subscribe first. How can I decide on that without reading a message?