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Three CS asked for my full debit card details? Should I be worried?

groke
groke Posts: 31 Forumite
Hi. I just took out a contract with Three over the phone and the guy on the other end asked for the full 16-digit number, expiration date and CVC.

I know I'm probably just being daft, but why would he need all that for a contract? Is not like I'm buying anything. I already gave him the sort code and account number, to set up the Direct Debit

(Sorry if this is off-topic - I couldn't find a debit card section)

Comments

  • agrinnall
    agrinnall Posts: 23,344 Forumite
    10,000 Posts Combo Breaker
    Perhaps they are going to take the first payment from your card as DDs can take from a few days to a few weeks to set up.
  • stevenhp1987
    stevenhp1987 Posts: 907 Forumite
    Part of the Furniture
    It's likely it was used for ID verification purposes.

    For example, if they get a pre-auth with AVS (Address Verification System) turned on then it means your name and address match what you've given them.
  • ywlgy
    ywlgy Posts: 146 Forumite
    Fourth Anniversary 100 Posts
    To verify your ID.

    When I took out my contract in store they took £1 from my card and refund £1 coin immediately. Though thereafter they input my card details again into computer. I don't know what that was for
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