I think they are either debt collectors softening up future "marks"or a dubious debt consolidation company.
Ignore them. If you are worried re debt contact the CAB
Recent Complaint Activity for (07745) 82-8329
A Call Control user reported as spam
07/29/16 04:11 AM
A Call Control user reported as spam
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06/29/16 09:40 AM
A Call Control user reported as spam
06/28/16 08:03 AM
An EveryCaller user suggested caller name as No idea