How much does it cost to ring a British Gas 0845 from a mobile phone?

[FONT=&quot]Hi,[/FONT]
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[FONT=&quot]Yesterday I was expecting a British Gas engineer to turn up to service my gas boiler, guess what they didn’t turn up. I didn’t have access to a land line so I had to use my O2 mobile phone to ring their 0845 9 500 400 contact number. The phone call lasted 34 minutes and 37 seconds.[/FONT]
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[FONT=&quot]Afterwards, I rang the O2 help line and I was astonished to find that (according to the representative on the O2 help desk) companies can set the call charge from anything between 40 pence to £1.50 per minute for mobile phones to call their 0845 numbers.[/FONT]
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[FONT=&quot]Now, thanks to the great people here at MSE I know about the SAYNOTO0870.COM website and thanks to the people who contribute to the SAYNOTO0870.COM website I found the geographic number for 0845 9 500 400 (which is 01698 802101 BTW).[/FONT]
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[FONT=&quot]Fortunately I rang the British Gas geographic number for free as it was within my mobile monthly allowance, but as I could have be charged anything between £13.85 and £51.96 for a 34.617 minute call to the British Gas 0845 number, I’d like to know how much British Gas rip off mobile users.[/FONT]
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[FONT=&quot]I’ve tried to find out the cost of ringing British Gas 0845 numbers from a mobile, by browsing their website but I’ve had no luck. I don’t want to ring them as I can’t face speaking to somebody who probably would know the answer![/FONT]
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[FONT=&quot]Does anybody here know the cost of ringing British Gas 0845 numbers from a mobile?[/FONT]
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[FONT=&quot]Many thanks,[/FONT]