What is service charge 8 ? I get billed for calls yet don't have a phone

[Jk2127]

Can anyone help me with the following, I keep getting billed for a call on my account, the problem is I do not plug in a phone so it's impossible for me to make a call yet sky bill me for it ... Date: 22 Feb Time: 16:22:19 Type: Service Calls Area: Service Charge - 8 Number: (removed) Duration: 00:00:51 Cost: £0.21

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