I Have ask Google too take off Frontline Taxis for two years but with no joy.
I get calls all through the night which is very upsetting.
Please remove Frontline Taxis 01763 249999 from all your ads etc.,
See their website:
Helmut Geissler, Google My Business Top Contributor | my G+ profile
Re: FRONTLINE CHAUFFEUER
Just to add, if this is the listing that you are referring to:
a) Name: Frontline Taxis
b) Address: Royston, UK
c) Google Maps URL: https://www.google.com/maps?cid=10742713644627730155
Then, it seems like the company's website (http://www.frontlinecars.co.uk) has this number "01763 249999" listed as well: