The telephone number +44 7534 482698 is being used to send Barclays new device scam texts. If you receive a message from this number then delete and block. Be particularly careful not to click on any dodgy links that accompany the scam message.
Typical scam messages from this number read:
Barclays: a payment was attempted from a NEW DEVICE on 05-07. If this was not you please visit: https://barclays(.)uk-olbauth.()com. Note that they have cleverly inserted the .co.uk part into the middle of their domain dame in the hope of tricking people into believing it is the real Barclays website. In fact this is a scam website. Beware!