Scam caller was able to recite my specific plan

[swalk]

I received an obvious scam call today about upgrading my account and verifying my information, I provided nothing.

The scary thing is the scammer was able to tell me what my specific plan already was - what should I do now, has some of my data been breached?

Thanks.

[Enlli]

Hard to say but it sounds as if it may have been one of O2's "Trusted" Partners. They would have that information. 

Stay well clear of them.