Need help with finding an old sim card number

[Zoomclub]

Hi I recently changed mobile payg sim providers and as I was leaving the country, tossed my old sim. It was not one I'd been using for long and I can't remember the number, nor do I know the SSID etc!
Problem is that just before I left the UK I used my mobile to pay for a car parking charge - The company are swearing that they cannot find a record of this and need me to confirm the number I called from!

I have found apps that can read call history back that far, but only shows the number dialled out - I need to know what number they were called from.

Any ideas - pref App based as I have no PC access out here yet

Cheers Jon
PS Apologies to Mods if this is the wrong forum!

 

[hang-the-9]

Contact your service provider that you used when you made those calls, it's impossible to find out any other way.