Threatening sms

I have been receiving numerous threatening sms messages from Norton Lambrianos Attorneys regarding an outstanding account with Virgin Money. Upon receiving these messages this past week, I have emailed them to ask if I could pay off the initial amount of the credit card in 4x installments. To which i have received no reply up until now.<br> <br> So they are very very quick to send threatening text messages and emails, but when it actually comes to helping the client resolve their debt... They are as unresponsive as a mollusk!! <br> <br> Please get back to me regarding this matter, or else I am forced to take legal action of my own, and they can forget about ever getting money out of me. This is not the first collections company I have dealt with... so do not test me. I do not take threatening texts very lightly.