I also have had many calls on this number.
Call 0800 282 390 and insist you speak to someone who knows about the 084-530-0727 number. It is Barclaycard!! If you have no joy at first ask be connected to Barclaycard in the UK. Keep going until you get to someone who will acknowledge the 084-530-0727 number is a Barclaycard number. No need to give any of your details even if you are with Barclaycard other than your name & phone number.
I have just spent 27 minutes on the phone, hope that's the end of it.
 Apr 28th, 2010
Called at 9pm. Woke up both my children. Didn't even bother to speak when we answered. Very inconsiderate.
Marie Wenden
 Apr 09th, 2010
Barclaycard have already been fined £50,000 by Ofcom for making constant nuisance calls to thousands of people yet they carry on regardless.

Don’t stand for this nuisance, harassment and widespread abuse of the telephone system. Complain about them and report them to Ofcom, the Financial Services Authority, the police, your MP, MSPs, trading standards, BBC’s Watchdog programme, Martin Lewis etc.

I’ve had between 5-8 unwanted calls from them *every single day for over 2 months* – they are behaving like thugs and should be prosecuted.

Don’t put up with this criminal behaviour from these Barclayshark pests!
John Merton
 Mar 17th, 2010
Keep receiving calls from 'Barclaycard' for another person on my mobile! Had these calls every day for the past 4 days and each time have told them its the wrong number and to remove my number from their systems. If i receive another call i will be putting in a complaint for harrassment!
 Jan 23rd, 2010
This is Barclaycard I was late paying my bill and they phoned at least 9 times a day
 Jan 15th, 2010
This is a scam call, DO NOT give any information to them, contacted the real barclays and they have never heard of this number and said DO NOT give information to these so called people, remember to always say will ring back when it suits me, and find the number from a secure source, ie yellow pages 118 etc, then when you do ring and speak to the real barclays, shock horror, they will tell you that its a scam and they do not have this number, when the real barclays ring a reff number is generated and they can tell you if when or who called you and at what time.
 Jan 06th, 2010
Caller claimed to be from Barclaycard, gave the name of Siven.
R Allsopp
 Oct 07th, 2009
This number rings all the time - pain in the arse!
 Dec 22nd, 2008