What is likely to happen if you have not paid credit card companies for a few months but you have moved and no one knows where you now liveand if you was to go on holiday abroad would you be arrested?
No you can't be arrested. If you have applied for a passport, you will have to list an address. Any future credit applications can be denied if current debt is unpaid. A judgment could be issued so if you were to apply for credit, in the future, the judgment [if any] may have to be paid first.