Thanks all,
They have been on again to my mother this morning, she blocked the number then received a text from a different number to say "no good blocking the number, we will contact all his friends and family".
They also mentioned the names of my (other) step sister and my step father and said they will contact them both next.
One of my step sisters works in a call centre, they called her office number three times yesterday, her boss ended up taking the call to tell them to go away then they called again just laughing.
This step-sister is 18 years old and barely speaks to my brother other than the occasional facebook comment here and there so i'm not sure exactly what they think they will achieve calling her..
This is straight from Tahseel's website in the FAQ section:
Why will my debtors pay you, if they have not paid me?
Debtors often pay us even if they never have cooperated with you, mainly because collection agencies such as tahseel increases the psychological anxiety associated with a debt. Our professional collectors make your debtors realize that you are serious about collecting your money.
What is Skip Tracing?
Skip tracing is the process of locating contact information about your debtor, such as a current or alternate address and telephone number. It also includes obtaining information about the person’s place of employment, names and addresses of family members, relatives, friends, or ex-spouses, assets such as property, bank accounts, automobile and much more.
Who decides if the debt is to proceed to litigation?
We do, with your full participation. If we fail to resolve the debt, we will normally proceed to litigation if we believe it is likely to produce positive results.
However, we are not obliged to do so and may decline to take the matter further if we think we can no longer be of any further help. You may then decide to 'write it off', transfer the case to the courts, or use your own lawyers.