A solicitor would have to do this through a Court. Nobody should be able to just call your employer from information and your employer should not give any out.

The short answer is yes. If you owe money, a creditor can obtain a court judgement against you. They will then apply for an attachment of earnings, demanding that your employer deducts money from your wages to pay the debt. The amount will be set by the court.

Before they apply for an attachment of earnings a creditor will need to know who you work for, they will often phone employers to confirm you work for them. They should not be discussing your business with your employers or identifying themselves as debt collectors.

It is very important you get some advice, we should be able to stop further action.