One -
phone calls
. You must ask them to stop calling on each call. If they do not, then write to them saying you have repeatedly asked them to stop and they have not stopped. They have therefore committed offences under the following acts:
Protection From Harrassment Act 1997
Administration of Justice Act
Wireless Telegraphy Act 1949.
They
may also have committed a "Misuse of
personal data
" offence under the Data Protection Act.
If the offence is repeated, you will complain to OFTEL, the Police, the Information Commissioner's Office and Trading Standards. Possibly also the Financial Services Authority. LOL!! They really are screwing it up...
Two - the debt.
If you've submitted a request under the CCA 1974 and they do not respond fully after 12 days they are in default and cannot enforce the debt while that remains the case. If they fail to respond for 30 days they have committed an offence under the CCA 1974... and they would be bloody stupid to then try and enforce the debt.