So...let's have a look at that number first....

01515591686

a terror, that doesn't sound good:

 

http://stopting.co.uk/en/number/01515591686

oh and somebody else thinks that it is a 'plumber'....well I don't suppose that CHP hired one in from Liverpool...do you?

http://uk.whocalledme.net/PhoneNumber/01515591686

https://www.shouldianswer.co.uk/phone-number/01515591686

and somebody else thinks that it is  'post box-fitters'...do you know what I think? somebody is pissing around...using that number in order to be a 'nuisance'....

let me have a look at another google result:

http://checkcallerinfo.com/phonenumber/01515591686

oh I see what this is all about now...look at the date...of that supposed entry....03/06...today is the 24/05/2016....

...that CHP plumbing appointment is on the 03/06....unless of course, an American date is being used...which would be written in british English as 06/03...but that's hardly likely, is it?

so we can say that the 'cabbage patch' rang today?

...and there's more...in iqbl....454 = AHA (remember that Norwegian popgroup?)....