Replacing previous note containing irrelevant self-promotional spam:
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Frontline Collections - London Office (Debt Collection)

2nd Floor 1-5 Clerkenwell Road London EC1M 5PA United Kingdom
0333 043 4425
https://www.frontline-collections.com/debt-collection-london/

Unverified, and editors are reminded to check for proper street-visible signage before mapping. Also be aware that this may be just a mailbox or accommodation address, in which case only the address and whatever the building's signage should be mapped. 